The struggle of resizing windows on macOS Tahoe
noheger.at1257 points by happosai 10 hours ago
1257 points by happosai 10 hours ago
Tahoe is a macOS mis-step on par with Windows 8 or Windows Vista. If you’re from Apple and reading this, my feedback is pretty succinct: “I don’t recommend others upgrade. I wish I didn’t.”
Luckily for Apple, Windows 11 is not exactly in a position to attract switchers.
Let’s see if Apple can turn things around. iOS 8+ did improve on iOS 7’s worst bits.
One of the most annoying things after installing Tahoe for me, that for no good reason an ordinary app would randomly lose its focus. In the midst of my typing. This is unbelievably preposterous and I just can't stop hating Apple for this crap. How the fuck this is acceptable? I just have no words. What makes it even worse that I couldn't even complain about it on their support pages - they just keep removing my comments for being "non-constructive". This is some random bug, and many people have complained about it, how am I suppose to make it "more constructive"? Send them the exact configuration of constellations, the number of monitors I use and their positioning angles, log the keyboard rate and delay, the latency, the level of magnetic interference caused by my Bluetooth devices, etc.?
I wonder whether this could be a touchpad malfunction, causing phantom clicks that move focus. To diagnose, you could temporarily disable it and use an external mouse.
a touchpad malfunction that only happens after an OSX update?
Yes, there is a very large amount of software that's involved in making touchpads work and that software is part of the OS.
I once had a vexing problem with my old Intel MacBook — macOS failed to boot, but Windows seemed totally normal. Can't possibly be a hardware failure, right? The symptoms disappeared after replacing the SATA cable!
External mice also suck with macOS though.
You have to use third party software to configure them properly, then they work fine. I used logitech’s drivers for a while but they’ve become the biggest pile of garbage I have ever seen call itself a driver. I now use BetterMouse instead.
i have a logitech mx something and it's absolutely awesome.
Those are great but often expensive mice. I wish the Apple tax didn't extend to third party hardware, but here we are.
It's not really an Apple tax. Those are just great mice, and I've used variations of them on Linux for more than a decade.
(except that my latest one has just suffered catastrophic battery failure)
Not sure why this is getting downvotes, it's absolutely true. For a very long time you couldn't even set different scroll directions for external mice and the touchpad - even if it's (maybe? I forget) supported now it's always been an area Apple didn't care about and was far behind Windows and Linux.
Recent switcher to macos. I can't find a way to separately set mouse acceleration and scroll wheel momentum.
I use a trackball for RSI reasons, in order to get across the screen in a single flick means high sensitivity, mouse acceleration is absolutely needed to be able to make small movements. This makes my scroll wheel useless because a single scroll moves the page about 1/10 of a line
I will pile on here and claim Apple is shockingly hostile to accessibility. From the weird way tabs work for focus to the limited options for text clarity, to the lack of control for mice customization, it feels like it has been a low item on their priorities for some time.
It's not supported as of now. Tools like Scroll Reverser are still needed to specify scrolling behavior between the touchpad and an external mouse.
I assume it’s getting down votes because it’s off-topic. The parent comment was suggesting external mice as a temporary measure to debug the intermittent issue they’re facing.
Whether or not external micr suck on MacOS doesn’t really matter. The objective was to diagnose an issue.
I have a great time using my G502 on macOS, but I absolutely rely on SteerMouse to configure its behavior.
Focus stealing has been an issue in windowed multi-tasking environments from the beginning. It's certainly been an issue in all macOS/OS X versions I've used since I started in 2011.
I've been using windowed multi-tasking environments since 1986. Never been a problem for me (SunOS -> Solaris -> Linux). I rely very, very, very much on focus-follows-mouse.
I have no information to add, but I also have started experiencing this after “upgrading” to Tahoe. Never was a problem before.
Delinia does this currently (I don’t think the fix is public yet).
You can run a python script to track the focused window every few seconds to identify what’s stealing focus.
Interesting. This is exactly the problem I've begun to have on my 14" M2 MB Air. I'm on 15.7.3. The issue started with 15.7.1.
Here I've been thinking it's a hardware problem, like some sort of mechanical intermittent. Maybe not.
Random possibility - if you have Bartender installed, it's buggy as shit on Tahoe, and has some really weird stuff it does with hiding the cursor and otherwise changing the focus around. I haven't switched off yet because the alternatives don't anywhere near as much functionality, but I probably will at some point soon, because while the updates have made it somewhat better it's still a pretty terrible experience at times.
> how am I suppose to make it "more constructive"?
Obviously by shutting the hell up, you ungrateful serf. The beatings will continue until morale improves.
Seriously, though, if you want this to stop, people like you are going to have to start voting with their wallets.
I finally pulled the plug on macOS a couple years ago for Linux, and I haven't been unhappy about it. However, I did make a point of buying a laptop that was well supported on Linux (a Lenovo X1 Carbon that was in the same price class as an equivalent Mac).
I did the same a decade ago, and I've been fully content with my Linux-only life - but a new MacBook recently arrived along with a new job, so now I'm using Tahoe whether I like it or not. It's generally difficult to vote with someone else's wallet.
Happened to me many times. As my other colleagues, I ran a Linux VM inside macOS. The overhead is not that large and is totally worth the sanity. Of course I had to use a few corporate-managed macOS apps, like Zoom, or Outlook, but this is not a very big deal.
I’m in the same situation, have to use Mac for SOC2 reasons after having used Linux for 10 years. The apps are fine, it’s the KDE window management I miss the most, and a VM won’t really help there.
Why, running KDE in VirtualBox in full-screen mode must be fine :) At least, I did it breathlessly with Xfce, on much older Apple hardware, and it was... just fine.
(OTOH running text-mode Emacs from a headless VM in a full-screen built-in Terminal may suddenly feel sluggish. Kitty or WezTerm solves this.)
The IT department must hate you. I’m not in IT but I think it’s hard to be compliant with some kinds of regulations if you allow end users to run VMs.
Well, be glad you're working for a company that is still willing to stump up properly for hardware.
Too many companies are balking at spending money on hardware right now. While I would love to think that this will drive Linux adoption, it probably won't. Microsoft is going to cave on TPM 2.0 for Windows 11 or extend Windows 10 support much further.
It will be interesting to see how RAM prices affect the behavior of all companies.
I wouldn't mind if this finally lights a fire under certain software companies to also actually optimize their shit for memory use, but... I'm not that optimistic.
Don't worry, Microsoft has your cloud desktops all ready to go! Very little RAM needed.
I can't speak for all companies, but the feeling I get from mine is that the issue is more about the maintenance and support for Mac rather than the little extra spend to get a MacBook pro instead of the standard windows box.
I appreciate your frustration, but at the same time what is Apple supposed to do? If it's affecting only a tiny number of users, and you just happen to be an unlucky one, and they don't know how to reproduce it, and you can't help them reproduce it, then what? I think they just have to wait until somebody (such as yourself) is able to figure out with some kind of logging what is happening. E.g. the first question to answer is probably what actually gets the focus, if anything? To produce a bug report that at least suggests which area of code might be responsible.
I had a similar problem at one point, then finally figured out it was when I accidentally hit the fn button which triggered the emoji picker window and moved focus to it (IIRC), but it was off-screen because I'd previously used it on a secondary monitor. Reconnecting the monitor and moving the window back to my primary display fixed it. (Obviously, it's a bug to show a picker window outside of visible coordinates, and I think it got fixed eventually.)
But it also might not be Apple at all, if it's some third-party background utility with a bug. E.g. if that were happening to me, my first thought would be that it might be a Logitech bug or a Karabiner-Elements bug. Uninstalling any non-Apple background processes or utilities seems like a necessary first step.
They could throw some small portion of their billions of dollars into proper quality control and reproduce it themselves if they wanted to. It’s an industry-wide malaise, but it isn’t inevitable. It’s amazing that every year it becomes more and more economically nonviable for basic shit to meet the most modest standards of usability, yet we can use the power consumption of a small country to have Copilot in Notepad.
The way I see it, money can’t buy one of the most important ingredients: the motivation to do the best work of your life. No matter how much cash you throw at a problem, you’re likely just going to get people who want to "do their job" from 9 to 5. Those are exactly the kind of workers that companies like the Apple of 2026 are looking for. It’s a big ship, and it needs to stay steady and predictable. People who want to achieve something "insanely great" or "make a dent in the universe" are just a distraction.
In my experience, shipping a product as polished as Mac OS X 10.6.8 Snow Leopard requires a painful level of dedication from everyone involved, not just Quality Assurance.
As long as neither the New York Times nor the Wall Street Journal writes about how bad Apple’s software has gotten, there’s even no reason for them to think about changing their approach.
The drama surrounding Apple’s software quality isn’t showing up in their earnings. And at the end of the day, those earnings are the "high order bit," no matter what marketing tries to tell us.
Windows has had a “prevent apps from stealing focus” option for at least a decade. It was one of the things that I still dislike the most about macOS, and Apple can absolutely address this.
Windows has no such option, and regularly steals focus, particularly Visual Studio/Debug tools/applications loading. It had an option for a short period with the original TweakUI, but Microsoft removed support for it even in the registry.
No OS should steal focus, Windows absolutely is guilty of it.
Windows itself isn't guilty of this in my experience (lifetime of use until Linux switch last year), but other apps like shitty Akamai. Some years ago a coworker wrote this blog post and a simple tool to find out which programs are doing it: https://forwardscattering.org/post/30
Windows is absolutely guilty of this, and it is trivial to reproduce.
Reproduction steps:
- Start a reply to this comment in your browser, type some example words.
- Create a BAT file with the following contents:
@echo off
timeout /t 15 /nobreak >nul
start notepad.exe
- Run the BAT file.
- Immediately switch back to the browser tab, and place your focus into the HN reply box. Type a word.
- Wait for notepad to open
- Continue typing. Your typing will go into Notepad and not the browser tab you had focused last.
This occurs commonly and continuously on Windows, it is damn obnoxious. The OS should never ever change focus, it should however flash the window/taskbar, that is acceptable, but not shift my typing into whatever arbitrary program opened. This used to be fixable via "ForegroundLockTimeout" which is what classic TweakUI altered, but was killed in Vista.If you're a Visual Studio user, it is a daily annoyance. You hit Start/Play, go about your work, and then suddenly some time later focus shifts out from under you.
I'm running Windows (25H2, 26200.7462). I used the batch file you pasted and tried your repro steps, multiple times (I started writing this comment, in fact). It didn't steal focus. (Edit: See below). I'm quite sure that I haven't had a steal-focus issue at the OS level for many years, and I use Windows all day, every day. I'm also a Visual Studio user.
Edit: I tried it with Firefox and got a repro there. No stealing with Edge.
I've found that the login dialog in Win 11 no longer consistently takes focus on the password field. Really annoying to login blind and find your typing was rejected because it doesn't do the sensible thing any more.
When I hit Win+L to lock my screen and come back 4 hours later to input my pin, I turn on my monitor (that I turned off because every 5 minutes Windows turns it on and off again), push esc or Ctrl a few times to clear off the image, and start typing in my PIN. 90% of the time by the time my monitor displays the picture, it's sitting at the unlock screen with the last 2 digits of my 4-digit PIN
Many Linux display managers let you chose what to do, when a window requests focus. For me on Sway, it just turns the border red.
I chose what happens after. Can recommend. I wasn't even aware of my privilege.
Where's that hiding? Discord is horrifically guilty of this across every OS, so I'd love a way to quash that on at least one.
GNOME on Linux prevents it. You get a notification "Discord updater is ready" instead which you can activate if you want to give it focus - which I never do. F the Discord updater.
I can tell you bartender 6 has been perpetually broken since release and does this. I finally gave up on it after the devs sent me “fixes” that never fixed anything.
> If it's affecting only a tiny number of users
Tiny number of users with such an enormous user base (10-16% desktop share) still means there's thousands of users affected.
> ... what is Apple supposed to do? ...
This seems like an example of a situation that modern machine learning could help with. Take bug reports permissively and look through all of them for patterns. Loss of focus should be the kind of thing that would stand out and could be analyzed for similarities and recurring features. Making sense of large amounts of often vague and rambling reports has been a problem for a long time and seems like a domain that machine learning is well set for.
> Luckily for Apple, Windows 11 is not exactly in a position to attract switchers.
Yes, but Linux is finally in that position, not to mention we're seeing silicon from intel and amd that can compete with the M series on mobile devices.
Linux isn't in position regarding display/UI. It doesn't handles HiDPI (e.g 4K) screen uniformly, leading to a lot of blurry apps depending on the display abstraction used (Wayland/X11) and compositor (GNOME, KDE, etc, all behave differently).
Let's not even talk about the case when you have monitors that have different DPI, something that is handled seamlessly by MacOS, unlike Linux where it feels like a d20 roll depending on your distro.
I expect most desktop MacOS users to have a HiDPI screen in 2026 (it's just...better), so going to Linux may feel like a serious downgrade, or at least a waste of time if you want to get every config "right". I wish it was differently, honestly - the rest of the OS is great, and the diversity between distros is refreshing.
> Linux isn't in position regarding display/UI. It doesn't handles HiDPI (e.g 4K) screen uniformly, leading to a lot of blurry apps depending on the display abstraction used (Wayland/X11) and compositor (GNOME, KDE, etc, all behave differently).
I have been using a 4K display for years on Linux without issues. The scaling issue with non-native apps is a problem that Windows also struggles with btw.
Windows struggles even with native apps, as soon as you have monitors using different scaling settings.
I'm currently using a laptop (1920x1200, 125%) + external monitor (1920x1080, 100%) at work. The task manager has blurry text when putting in the external monitor. It is so bad.
I recently bought a MacStudio with 512GB of RAM and connected it to a LG 5k2k monitor. For some reason there was no way to change the font size (they removed the text size "Larger Text ... More Space" continuum from the Display section of settings) so I ended up with either super small or super large fonts without anything in-between. In the end I had to install some 3rd party software and mix my own scaled resolution with acceptable font size. This has never been a problem on Linux in the past 10 years, all I needed to do at worst when it wasn't done out of the box was to set scale somewhere and that was it.
I bought a MacStudio 2 months ago, on Sequoia you go to "display" and should see the various resolutions. If not, "advanced">"show resolutions as a list">"show all resolutions".
Unfortunately, resolutions offered were weird. Native is 5120x2160 but that wasn't offered and scaled resolutions were weird. I guess macOS didn't read monitor's information properly or something. I wasted a few hours frantically trying to figure out how to connect a $12k computer to a 4-year old monitor which should have been a breeze but for some reason wasn't. The same monitor worked fine on Linux or Windows.
Pick up a copy of BetterDisplay. Absolutely useful for monitors with non-standard resolutions.
I feel like this has something to do with Apple fucking with DP 1.4 for the ProDisplay XDR.
My 2019 Mac Pro with Catalina could happily drive 2 4K monitors in HDR @ 144 Hz.
People wondered how Apple got the math to work to drive the ProDisplay.
Big Sur? Not any more. 95Hz for 4K SDR, 60Hz for 4K HDR. Not the cables, not the monitors. Indeed, "downgrading" the monitors advertised support to DP 1.2 gave better options, 120Hz SDR, 75Hz HDR.
And it was never fixed, not in Big Sur, Monterey or Ventura, when I had switched monitors.
Hundreds of reports, hundreds of video/monitor combinations.
Frantically? For hours? If that is what you meant, did you try stepping back for a few minutes, and coming up with a plan / doing research?
Curious what software; I've used "SwitchResX" in the past and it met all my needs...
it's not removed : you have to hold Option when choosing resolutions, and the panel changes to show myriad options.
i think that's what you're describing, anyway.
BetterDisplay has solved a ton of problems like this for me; when MacOS gets confused about non apple monitors, BetterDisplay knows how to fix things.
AFAIK the smallest 5K2K is 34", with a PPI of 163. I don't believe that is treated as "HiDPI" by macOS, is it?
Every 4K external display I've connected to every M1- and M2-series Mac running macOS has a known flickering issue with Display Stream Compression that Apple knows about and has been unable or unwilling to fix.
The only reliable fixes are to either disable that DisplayPort feature if your monitor supports it, or to disable GPU Dithering using a paid third-party tool (BetterDisplay). Either that or switch to Asahi, which doesn't have that issue.
The issue is common enough that BENQ has a FAQ page about it, which includes steps like "disable dark mode" and "wait for 2 hours": https://www.benq.com/en-us/knowledge-center/knowledge/how-to...
One of my external screens is 4k and I haven't noticed any flickering. It's an Apple monitor though, so maybe that's the difference.
I recently installed CachyOS and the text was crisp and accurate out of the box on my hidpi screen. So whatever settings and software combinations are required, cachyos got it right, with KDE and wayland at least. All apps I use have been rendered perfectly clear.
> Linux isn't in position regarding display/UI. It doesn't handles HiDPI (e.g 4K) screen uniformly, leading to a lot of blurry apps depending on the display abstraction used (Wayland/X11) and compositor (GNOME, KDE, etc, all behave differently).
Meanwhile on MacOS my displays may work. Or they might not work. Or they might work but randomly locked to 30hz. It depends on what order they wake up in or get plugged in.
I suspect the root of the problem is one of them is a very high refresh rate monitor (1440p360hz) and probably related to the display bandwidth limitations that provide a relatively low monitor limit for such a high cost machine.
I have similar issues without the high refresh rate. It's a MacOS bug related to sleep/wake corrupting internal display settings.
https://discussions.apple.com/thread/255860955?sortBy=upvote...
After 344 "me too"s and 180+ replies they silently locked the thread to save themselves from more embarassment.
I finally got fed up with my two external monitors (one of which I rotate to portrait) getting mixed up by MacOS every time my MacBook would go to sleep or I unplugged it, so I bought a thunderbolt docking station which has basically solved all my issues. Worth every penny to be able to swap my personal laptop and work laptop with a single cable.
Macs don't support the USBC / displayport daisy chaining support that my monitors should be able to handle. Very frustrating that this stuff is still so nonstandard. If you have all Apple it all works perfectly, of course.
But don’t forget to order the “right” (i.e. caldigit) dock. My dell dock is even more of a mess on the Mac than plugging the monitors in directly. Works great with a Dell (obviously) and framework laptop running Win10 and Linux respectively though
I've got a Dell dock that worked OK after I borrowed a windows laptop to update the firmware; but it only works with my M3 and M4 macbooks, but not my M2 Mac Mini.
I am a full time KDE/Arch user and since Plasma 6 haven't had any HiDPI issues including monitors with different DPI or X11 apps - of which there are very few nowadays.
I use linux at home (with a HiDPI screen) and MacOS for work. The screen works well with both computers. I mostly just use a text editor, a browser, and a terminal though.
Linux has bugs, bug MacOS does too. I feel like for a dev like me, the linux setup is more comfortable.
Same here. I stick to 100% scaling and side step the whole hi dpi issue. I even have a single USB type c cable that connects my laptop to the laptop stand and that laptop stand is what connects to the monitor, keyboard, and mouse.
I know people will say meh but coming from the world of hurt with drivers and windows based soft modems — I was on dial up even as late as 2005! — I think the idea that everything works plug and play is amazing.
Compare with my experience on Windows — maybe I did something wrong, I don't know but the external monitor didn't work over HDMI when I installed windows without s network connection and maybe it was a coincidence but it didn't work until I connected to the Internet.
Wait, has MacOS finally figured out fractional scaling? Last I looked, Linux actually had better support. And now Linux support is pretty good. It’s really only older apps that don’t work.
https://discussions.apple.com/thread/255860955?sortBy=upvote...
MacOS isn't in any kind of position regarding displays. 180+ replies and 300+ upvotes by the 0.1% of sufferers who bother to find these threads, log in, and comment of them. Exteemely widespread, going on for years, thread silently locked.
Sure, you can find some obscure DEs that don't handle that well yet. Or you could just use Plasma and have it all work just fine, like it did for many years now.
I've not had any issues with 4k display. Mac does handle monitors with different DPIs well, but not really a issue for me. Most hardware I use also just works great. Gaming is great now as well.
The only reason I can't completely switch to Linux is because there are no great options for anything non-programming related stuff I love to do ... such as photography, music (guitar amplifier sims).
My dude, It's been more than capable for years. I have an ultrawide OLED monitor (3440x1440@165hz) paired with a 4K@144hz monitor. Both HDR, different capabilities. Both have different DPIs set, 125% for one, 200% for the other. My setup required less configuration than Windows does. Right click -> Display Configuration -> Set Alignment (monitor position) -> Set refresh rate -> Set HDR -> Set DPI -> Apply. Done.
Don't knock it unless you've tried it.
This was CachyOS btw. Windows actually required MORE work because I had to install drivers, connect to the internet during setup, get nagged about using a Microsoft account, etc.
CachyOS was basically boot -> verify partitions are correct -> decide on defaults -> create account/password -> wait for files to copy -> done. Drivers, including the latest NVIDIA drivers, auto installed/working.
Tried 3 months ago with Gnome (PopOS) and a 4k screen at 125% scaling, apps were blurry, especially Brave, which was a big disappointment.
I give Linux a try each time I need to set up a new computer, and each time run into new issues. Last time (2 years ago) the hdmi connection with the screen would drop randomly twice a day. Same for the keyboard, and the wifi card didn't have drivers available. It became quite annoying, reducing my productivity as I had to reboot and pray. I then installed Windows, which solved all of the issues (unfortunately?)
Maybe I'm just unlucky.
PopOS was very behind other distros in adopting new versions of software until recently due to their epic diversion of building a brand new DE, letting the then existing release bitrot. This created all sorts of issues and incompatibilities that had already been solved for one or even two years in other distros.
Things are changing and improving VERY fast in linux land lately, so being behind by that much is gonna pretty much set you up for disappointment, along all the usual reasons why you ideally want to be on the just dull enough part of the bleeding edge for linux desktop, where you are only getting a few small shallow cuts and hopefully no deep cuts...
Anyway, popular acclaim for popos reached it's peak just when those problems started to show up. It used to be better in years prior, but the reputation tends to lag the actual reality, so sentiment at that point was to recommend it even though it wasn't actually a good choice.
Honestly, give Linux another try four or so months from now. You will get to start fresh on a brand new Ubuntu LTS or the usual new Fedora release. Try Gnome or KDE, see which ones sticks the best with you. Just don't try anything else if you want maximum features, commodity and stability.
Yes, you were unlucky :(
If you’re unlucky in the same way I was, it could actually be a GNOME/GTK issue. Some questionable (?) font rendering decisions were made that for me caused all text in GNOME to be blurry. I hated it so much I switched to KDE but soon realized GTK apps had the same issue.
Eventually I found a fix that worked and now I’m happy. So, next time you can try this. In the file:
~/.config/gtk-4.0/settings.ini
You can add:
[Settings]
gtk-hint-font-metrics=1
Here’s the Arch wiki page that explains it:
https://wiki.archlinux.org/title/GTK#Text_in_GTK_4_applicati...
If your settings.ini is in a different spot see:
It also doesn't offer a Mac-style desktop environment, which is one of the things keeping me away. KDE/Cinnamon/XFCE lean more Windows-style, GNOME/Pantheon (Elementary) is more like iPadOS/Android in desktop mode. My productivity takes a big hit in Windows-style environments and I just don't enjoy using them.
I hope to put my money where my mouth is and contribute to one of the tiny handful of nascent Mac-like environment projects out there once some spare time opens up, but until then…
So apparently when Canonical was the gorilla in desktop Linux, they had a push to have apps make their menus accessible via API. KDE supports that protocol. There are KDE widgets that will draw a Mac-style menu bar from it.
That means you can take the standard KDE "panel" and split it in two halves: a dock for the bottom edge, and a menus/wifi settings/clock bar for the top edge.
There are some things I don't know how to work around - like Chrome defaulting to Windows-style close buttons and keybindings, but if the Start menu copy is the thing keeping you off Linux, you can mod it more than you think you can.
Yep, I've played with it. Things might've changed but I couldn't get KDE's global menubar to work at all under Wayland, and under X11 a lot of apps don't populate it.
I have the widget for global menu right now in KDE Wayland. Its supported by all QT apps, and there's a wayland protocol pull request for it (unfortunaly stalled, as is tradition). Overall I like it a lot - enough of the apps I use support it (if you're a GTK fan then tough luck).
merge request: https://gitlab.freedesktop.org/wayland/wayland-protocols/-/m...
Thanks for sharing. Would you happen to know if Electron apps might surface the same menus they do under macOS via this protocol? Between Qt and Electron a lot of stuff would be covered.
Gnome with a persistent app drawer is relatively Mac-like. With a couple settings tweaks and possibly extensions, it can get pretty close. Even out of the box it feels a lot more mac-like than windows-like to me, but of course everybody is a bit different.
Some of the broad strokes are there, but the details are what matters. Gnome extensions also come with the problem of breaking every other update which quickly becomes irritating.
what does this even mean?
There are major differences in the design between Windows and Mac desktops, and generally speaking, Linux desktop environments function more like Windows than they do macOS.
The biggest difference is probably that under Windows-style environments, applications/processes and windows are mostly synonymous — each window represents an independent process in the task manager. In a Mac-style environment, applications can host multiple windows each, so for example even if you've got 7 Firefox windows open, there's only one host Firefox process. This is reflected in the UI, with macOS grouping windows by application in several difference places (as opposed to Windows, where that only happens in the taskbar if the user has it enabled).
"Windows style" also comes a number of other patterns, such as a taskbar instead and menubars attached to windows (as opposed to a dock and a single global, system-owned menubar under macOS).
"Mac style" comes with several subtleties that separate it from e.g. GNOME. Progressive disclosure is a big one. Where macOS will keep power user features slightly off to the side where they're accessible but unlikely to confuse non-technical users, GNOME just omits the functionality altogether. It also generally implies a greater level of system-level integration and cross-functionality from apps (including third party), lending to a more cohesive feel.
GNOME still has some problems with fractional scaling, but KDE works perfectly. I'm using two displays, one with 150% and one with 100%. No blurry apps and absolutely no issues. Have you tried it recently?
Can you independently set desktop wallpapers on the two screens? I know this seems nitpicky but it's literally impossible with Ubuntu/Gnome as far as I know; I have one vertical and one horizontal and have to just go with a solid color background to make that work.
Yes. It was actually more tedious to do the inverse when I wanted three screens to do a rotating wallpapers from the same set of folders as I had to set the list of folders three times
KDE is in better shape than GNOME, but there are still some nits. Nearly all the available third party themes for example are blurry or otherwise render incorrectly with fractional scaling on.
So don't use a third party theme.
Problem is, the stock themes aren't to my taste at all.
Why not send a pull request to one of your theme maintainers?
To my understanding, doing that wouldn't be helpful due to hard technical limits that can't be reconciled. Most window chrome themes are Aurora themes, which don't play nice with HiDPI, and to change that they'd need to be rewritten as C++ themes (like the default Breeze theme is), which is beyond the capabilities of most people publishing themes.