I certainly hope the Wayland experience is better on Gnome than it is on KDE, otherwise a lot of Gnome users are not going to be happy. I tried KDE with Wayland and oh boy… Just some things I noticed on a daily basis:

Applications going completely unresponsive, as in: requiring kill -9 to terminate them. Solved for now by reverting to X11.

Stuff like the display configuration screen placing a gap between my external monitor and laptop screen, and then complaining that screens must be placed adjacently. Annoying as both X11 and Wayland insist on defaulting my 5120x1440 display to 640x480 each time I reconnect it, so I see that screen way too often. At least with X11 I don’t have to manually drag screens to their proper places before being able to save my settings.

Window manager just completely locking up at random, requiring a hard reset.

If my experience on an AMD graphics laptop just under a year old is that bad, I hate to think how horrible the Wayland experience for Nvidia users must be judging by the comments here.