Yeah, and this list looks very out of date too. The push to wayland was really hard, but a lot of issues have been fixed. I don't doubt that it is already better than x.org in most common cases.
Does anyone know how good the HiDPI support is in wayland? I have a secondary display that has a different pixel density from my primary display. Will it just work? Does anyone know?
I'm currently running 2 different screens at two different scaling resolutions, one at 125% and the other at 150%. Works fine. KDE Plasma 5.27.5.