@KarenItookThekid
If you can bring more info on your specific case that would be very useful. I'm not aware of another common reason for a stuck mouse besides bad peripheral reading (usually USB devices) or gaming overlays. If you didn't already, I recommend disabling the Xbox Gaming App. All Windows 10 PCs come with it, and it's another gaming overlay. Another suggestion is to go to your game's .exe, right click, choose Properties, and then in compatibility disable fullscreen optimizations.
If these don't work, I'd like to know more details of your issue to see if we can find another workaround that might fix your issue.
If u have the NVidia GD then u need to disable that overlay
