Sorry my bad, disregard about my second question. I actually found this Mouse control in Wayland · Issue #746 · panda3d/panda3d · GitHub
And I realized that on Wayland, the actual mouse pointer will not be moved by the base.win.movePointer , but in X Window it works fine.
If I understand correctly, in the most current master branch, the relative mode should just work for those shooting games, no matter Windows, X Window, or Wayland. They should all just simply work. Is it right?
Ice