Thanks for your quick feedback.
Since some games don't support display scaling and may not run in full screen mode if scaling is enabled. Could you try to disable display scaling by Right-clicking on the game's shortcut, select Properties, click on the Compatibility tab, and check the option that says "Disable display scaling on high DPI settings."
Overlays such as Discord, Steam, or GeForce Experience can cause issues with full screen mode. Try disabling these overlays while playing the game.
If full screen mode still doesn't work, try running the game in windowed mode. You may also be able to resize the window to fill the screen.
thanks,
Thanks for the suggestion Mr Trust\_A,
The closest option I could find in the Compatibility tab is "Disable fullscreen optimizations".
That seems to solve the problem for most of the games. I haven't tried it with all my games yet.
Thank you again for the help!