No you cannot run any of those WMs, some of those do have ports with varying degrees of completeness but only sway(i3) and hyprland(hypr) are ready for prime time.

Yes, using waypipe

Yes, primary selection does work along with Ctrl+c although as others have mentioned it forgets when the app you copied from gets closed

Can I use AwesomeWM, XMonad, or StumpWM on Wayland?

Can you run macos software on linux?

Can I run a GUI program over ssh?

This is more of a why would you... Although, waypipe

Does it support the X selection and clipboard protocols?

Too lazy to google, but overall clipboard works as expected, both C-c and text selection. I remember experiencing problems with clipboards in vim (like 2 yrs ago) which were fixed by switching to nvim

I'm on KWin Wayland, it also works great. I actually never noticed that I was switched from X11 to Wayland when I reinstalled Debian.

I personally run sway. I was really looking forward to kiwmi but that project looks dead

Compositors do directly interact with the drivers though. The reason Wayland doesn't work on Nvidia is because Wayland uses an API called GBM(generic buffer management) to draw directly to the Linux VT. The Nvidia drivers don't implement that API, the API that both AMD and Intel drivers support. It very much IS an Nvidia problem and not the other way around. Nvidia tried to convince all the Wayland developers to use EGLStreams instead but no other drivers use(or even support) that API, everyone agreed on GBM except Nvidia. That's not Wayland's problem.

Yeah, people like to pretend KDE and Gnome are the only options. I dislike both. Cinnamon is the (unintended?) spiritual successor to the last Gnome I liked, which is Gnome 2.

But NVidia isn’t a barrier for wayland anymore.

I disagree. When I used it recently it was still very much subpar compared to the AMD experience. It's usable, but not to the point that I would like to use it.

But NVidia isn't a barrier for wayland anymore.

I've heard that before recently, but tbth I really don't want to mess with my system rn (barring updates), it mostly acts as a server lately sense I got my SteamDeck and that's probably how it's gonna stay as I really want to avoid accidentally breaking anything for the time being

When I get my batch 2 framework order I'm going to be a lot more willing to learn adout and experiment with Wayland, just becouse I know whatever I do on that it won't interrupt what other people are doing who are connect to the aformentioned server on my older machine

Will I upgrade my other computer to Wayland? Maybe eventually after I've learned more about it and played with it some, but for the time being it's just gonna stay as it is