Usability granted: [Bug 402034] Provide an easy way to restart KWin and Plasma shell to the user (from virtual console)

leftcrane <[email protected]> has granted	Usability:
Bug 402034: Provide an easy way to restart KWin and Plasma shell to the user
(from virtual console)
https://bugs.kde.org/show_bug.cgi?id=402034



--- Description ---
there are several different solutions being suggested online and I haven't
found a single one that allows me to restart both precesses successfully
(compositing gets disabled, complains about no display not being found, plasma
gets terminated but wont restart, or plasma gets terminated but the applets
start to work in really weird ways)

I find myself frequently needing to use this feature due to desktop freezing,
either because of third-party software, ram consumption or KDE bugs (hard to
figure out). I don't want to log out or reboot cause then I lose all my work.

Due to it's single-threaded design, Gnome (on X) has a one liner:

--replace

KDE needs some kind of script but I can't figure out what that script should
be. I suspect many users are in the same position (as evidenced by the
popularity of this question and the variety of answers). It is also unclear
whether the solution for X and Wayland would be different.

People need a simple, reliable way too unbork the shell and WM in case of
emergency. It's a wishlist, but I'd like it have a high priority.