Gonna say that the switch from X11 to Wayland that was pretty much forced this year across many distributions, broke a ton of things too (screenshot programs, keyboard shortcuts), however, all the code is open source, and there are workarounds and source code available but it still sucks.
Basic keyboard shortcuts are still broke with the Wayland migration. e.g. Copyq has this janky workaround for a shortcut to register with the xdg-portal (that works until reboot, then stops), Warp terminal claims there is no support, Flameshot was impossible to configure, have to use the built in Gnome shortcut tool now. The whole ecosystem got wrecked. I have been so irritated by this that I've been considering switching TO the mac ecosystem, BUT this thread is good on my eyes and makes me disinterested now.
FWIW exactly because it is open source, there isn't anyone actually forcing you to use Wayland (distros changed a default, they didn't remove the ability to install something else - even Fedora that got rid of X11 support for GNOME in their distro still provides other DEs and WMs). As long as there are people who want to keep using X11, there will be an option (be it Xorg or some fork).
It's been a very frustrating year, I made the mistake of upgrading Pop OS 22.04 that I'd been using for years that was a rough couple of weeks!
Toshy still works to give me Mac keyboard shortcuts I might never let go of, but I still haven't figured out the keyboard shortcut to switch between open instances of the same program which drives me insane!
Hyprland it's doing a lot of efforts in solving these problems. For now I'm using i3 and will come back one the ecosystem stabilizes more. (More than that I've lazy bc from what I've seen now is ready)
Keyboard shortcuts have been a big pain point, but I'm adjusting. I'm using Plasma 6, and trying to use the defaults vs emulating the mac shortcuts. Print screen as a screenshot button makes considerably more sense to me than Command-Shift-4, and Meta+Print Screen captures just a single window.
Logiops + Plasma's multi desktop support has given me something very similar to the multi desktop experience I had before, and the pager in the taskbar is a big improvement.
The tiling in Plasma needs work. I initially loved it until I released that when I arranged the tiles differently on one desktop, it changed them on the others... Hopefully that gets better.
I've been exclusively on wayland (xwayland for games and browsers before they support/ed wayland natively) since 2019 (!)
Yes, there were and are problems, but far, far less than before and not much more than on X11, just different ones.
I do all my gaming and LLM inference on devuan. (That laptop should chew through 30-120B parameter LLMs, depending on how much RAM it has.)
I don't have any of the problems mentioned by you or sibling comments, full stop.
Up until about a year ago, audio was janky as hell, but then as part of the great de-Poettering, they switched from PulseAudio to PipeWire. I've had zero issues since then.
Copy paste works. Login works. X11 runs at native panel speed (144Hz) with bug-for-bug parity with windows 3d acceleration, but open source (AMD drivers). XScreenSaver works (and can lock the screen). I can't comment on any of the stuff you mention in the second paragraph. I assume it's a bunch of broken Wayland workarounds?
Anyway, instead of switching to Mac, just switch to a stable distribution. Devuan is Debian minus systemd, so essentially everything works out of the box. Even crap that requires systemd usually works, since they install stubs. LLMs like Claude will happily admin it once you tell it that which init system to target.