You could run the game under Wayland before, but it was not default behavior nor provided as an option.

I used to force the game to use the Wayland version 3 years ago to work around a bug in GLFW that caused inputs to be ignored under X11.

But then Minecraft updated to use a fixed version of GLFW so I stopped needing to do so.

I ran 1.21.10 and snapshot 25w34a. With xeyes, I was able to confirm that 1.21.10 was using Xwayland and 25w34a was using Wayland.

I do keep it on for touchpads, they are too small to used without it. But with a mouse with proper hand space, it’s just more consistent to have it off.

The most reliable stats would be the Steam hardware survey.

It’s not on the chart.

No

Yes. However, it’s still very notable that distros like Ubuntu have gone from 40+% to under 10%.