Wow, just today I learned I can control my monitor via software and it worked. All this time I've just dealt with the brightness since I game on it and use dark

Wow, just today I learned I can control my monitor via software and it worked. All this time I've just dealt with the brightness since I game on it and use dark themes to mitigate the white flashing. Besides that it takes a while to adjust and my monitor's on a flimsy mount and so I hate to have to move touch it. I'm going to hotkey it and have a one-button solution now. Thanks to your comment and to OP's.