Hmm doesn't seem to work for me, windows kinda freaks out as it tries to change resolutions and then the game crashes I guess? Or fails to open at all. I tried disabling full screen optimization and admin mode but no dice. Also tried putting my res to 1080p first and disabling my second monitor
Windows 10
4k
3060
ryzen 5 5600
Sorry mate, hope this info helps a little atleast. Goodluck on development game looks cool