I've been using KDE's Wayland session for ~6 months now. Things have gotten really good with Kwin, and the last major bugs I experienced have been ironed out. I

I've been using KDE's Wayland session for ~6 months now. Things have gotten really good with Kwin, and the last major bugs I experienced have been ironed out. It's usable for work, gaming and web browsing without any crashes. At this point I think X11 is quickly becoming the less-stable option. I'm on NixOS with both Nvidia and Intel hardware. Both run extremely well with modern KDE.