wayland doesn't seem to support nvidia as well as X does, just due to development focus
Ymmv with Nvidia, but that has nothing to do with development focus and everything to do with Nvidia's refusal to use the same interfaces Intel and AMD use. Most of the way Nvidia works or doesn't work with X or Wayland is down to Nvidia's driver stack. Personally I've not had much positive experiences with Nvidia on X.
Like yes major releases and distros are moving to wayland now, that just means they find it stable enough to start doing development on it.
That happened literal years ago. The reason you're only noticing now, might be because KDE has gotten their Wayland implementation to a reasonably stable point. Gnome has supported Wayland for some time now and other DEs probably don't have the resources to move on from X. I don't see the distros that are only switching over now as major contributors to any development specific to Wayland.
I don't take issue with your preferences. Maybe you're better off with X for now, that's fine, but you make it sound like Wayland is just full of issues and has barely even entered some kind of pre-release state for software masochists.