On cachyOS, when starting the game window appears on my left monitor, I use shift meta right to put ut on my main monitor, but it’s like despite the window moving the click detection stayed on my left monitor if it makes sense
#Mouse not working when moving window arch/wayland
unborn tulip
lusty ledge
Try changing the video mode from borderless fullscreen to just full screen
static geode
I have the exact same problem. I think it's related to Unity because I've also had this with a demo of a game made in Unity.
It's like if the game expect to be on a screen and if it's not, it does not receive the mouse inputs.
If I want to change the screen, I go to windowed mode, change screen then get back to fullscreen. And then it works on the correct screen.