> Without a compositor I get lots of stuttering on x11... Might be my Nvidia GPU, but I've never gotten x11 to work flawlessly for gaming.

Weird. I don't use KDE's compositor, and -AFAIK- WindowMaker doesn't have one. When in either KDE or in WindowMaker I don't have stuttering with either fullscreen, borderless "fullscreen", or windowed games... everything is as smooth as it is in Windows. Having said that, I do know that -when using KDE- some fullscreen games get jittery as all shit if a notification pops up and remain that way until the notification disappears. I expect that that performance problem would go away if I was using the compositor... but I don't want to spend the VRAM on it.

I use AMD graphics cards, so it might be an Nvidia thing that you're seeing. It also might be a "Your Linux distro simply stopped shipping good xorg installs" thing. I'm running Gentoo Linux which continues to ship updated versions of xorg and supporting software. [0]

[0] I've heard people running Debian and Debian-derived distros report X11 behavior that absolutely does not match what I've been seeing for years... so some percentage of the "X11 can't do $THING" when it really, really can must be coming from distros that ship either dramatically out-of-date or severely crippled xorg installs.

X11 has basically no development anymore. That means regressions are entirely ignored.

I switched my Gentoo box from X11 to Wayland three years ago at this point.

It's shocking that people still install X11 as a default in 2026 except with very old hardware.