I have the same issue.
Before 470.74 I was getting random black screens on games loading screens, that would come back after 3 seconds. After installing 470.74 I can’t even enable G-Sync anymore or the screen never actually renders anything when I enter a game.
The black screen issue is gone if I disable G-Sync, which leads me to believe the previous issue was also G-Sync related.
edit - I’m on a 1050Ti, and my monitor is a Dell 2721DGF. Kernel 5.14.6