Interesting results, in a nutshell it seems like Wayland/Xwayland performance on both nVidia and AMD wins slightly more than it loses. Once VRR is live in nVidia 545 series driver, for 3D games, Wayland is looking to deliver a great experience. Performance when Wine’s Wayland code is ready to mainline will be very interesting given that Xwayland needs will be negated at that point.
I’m excited to see if the artifacting issues when gaming that I was experiencing on earlier versions of the nvidia driver are resolved now. My biggest issue with wayland (it’s minor but annoying) is that when I lock the screen on gnome the monitor backlight stays on. The screen goes to sleep but then the monitor backlight kicks on and I can see the cursor and a black background. This doesn’t happen in xorg and I haven’t been able to pinpoint what the issue is.
The work around is to manually turn off the monitors when using wayland but annoying as it’s a basic feature and should just work.