Invisible mouse in desktop with Steam controller [with workaround]

Hey, not sure if this is the right place for this, but I found an interesting (and apparently very old) bug.

1. On the ROG Ally, when you attempt to use Steam Input in Desktop mode, the mouse cursor is invisible.
2. In order to get a visible cursor, I had to attach another mouse.
3. Once the cursor is visible, if you go back to using the joystick, the selection point moves, but the cursor itself does not.

It looks like it has been a long-time issue for the Steam Controller on Wayland.

https://github.com/ValveSoftware/steam-for-linux/issues/4738
https://github.com/ValveSoftware/steam-for-linux/issues/6615

I was able to get it working with the following project:
https://github.com/Supreeeme/extest