Again, we may live in a parallel universe. Because I am using KDE and wayland and NVIDIA, and it works beautifully. Although NVIDIA really started to work great only fairly recently (last couple of years).
And using X is a noticeably worse experience.
I'am excited to follow the still very early development of xfwl to see how a classic DE works in wayland.
Same setup here, minus Nvidia. Love KDE with Wayland. Super stable. Tried Gnome, but switched back. Gnome felt like it was 20 years ago in terms of functions tho UX was still posh.
Ditto, same setup.
When I first grabbed my current setup about 2 years ago, the nvidia drivers had all sorts of annoying and painful bugs to work around. However, there were workarounds.
Now, everything mostly just works. The only thing I struggle with is sleep which seems to be permanently broke in the latest nvidia drivers.