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.
ashleythorne
        joined 4 weeks ago
      
    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.
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.