It seems like wayland got a lot closer to generally usable in the last few years, but it's still not for everyone. Some of this is (intentionally) limited design, some of this is lack of people caring to migrate their software to work with wayland.

I was looking to switch to wayland in my VM after noticing that it does have much lower cpu utilization, and better compositing behavior, at the same time. Yet, can't do it. right or wrong, wayland's stance on security before convenience on the whole clipboard access thing means I cannot copy-paste between VM and host, because those vm tools do not support wayland, and I don't know when they will.

Also, I noticed that people who prefer obscure window managers or desktop environments are mostly in a bad spot, as the amount of WMs that support wayland isn't much.