For those wanting to build a Wayland-only Linux desktop experience without carrying any aging X11 baggage, GNOME 47 will be able to optionally offer Wayland-only support without carrying X11/X.Org support. This Mutter merge request landed today that allows compiling Mutter with X11 support disabled. That landed today along with this GNOME Shell merge request for being able to disable X11 support too.
iirc GWE is unmaintained atm
The primary maintainer stepped down, but there has still been work done by other contributors. The primary problem is that the underlying library is reliant on x11. This is the same reason why nvidia-settings doesn’t have all of its features on wayland. Basically if nvidia’s on tool doesn’t work then there is no way that green with envy can either. There is an open merge request attempting to switch to a different library that Nvidia says they plan to move to eventually, but it is slow going.