Not sure if its XWayland but the vision stutters a lot while everything else is smooth. Also X11 seems unusable for some reason on KDE because I get a lot of glitchy artifacts (and Direct Mode seems to be enabled)
Edit: Using an AMD 6750xt with i5-8600k on Arch Linux with KDE Wayland
I did not state that its playable on X11, but for many Linux users its working except for me. https://github.com/ValveSoftware/SteamVR-for-Linux/issues/588
But yeah, I noticed that many things are just not working like switching Audio from VR or Bluetooth. But thats still no real issue for playing VR.
Not just switching audio when appropriate, I can’t get it to play any audio on the headset whatsoever. Yeah it’s still possible to play with the audio on my PC speakers but it’s a severely worse experience sadly.
Personally I’m experiencing https://github.com/ValveSoftware/SteamVR-for-Linux/issues/334 so I can’t help you sorry. Hope you find the answer though!