Samsung G9 OLED Black Screen Issues after Firmware Update 1402

I just foolishly updated to the newest firmware (1402) without checking other's experiences and it's been a nightmare. Now I can't tab out from a fullscreen game without getting a black screen.

I can somewhat work around by HOLDING alt+tab when going from game to something else, but not vice versa. To get back into my game I'd have to refresh my GPU using CTRL+SHIFT+WINKEY+B but it's terribly tedious.

I saw on another thread that you can rollback by changing the name of the file but I can't find the file anywhere. Is anyone out there that has it and is willing to share? I have the Odyssey G95SC or LS49CG954SNXZA.