Grounded 1 had no problems with brigntness but in grounded 2 I'm really struggling. I can't get the gamma setting correct, the dark areas are too dark and looking up to find water is murdering my eyes with brightness.

I have to resort to hacking the game with reshade just to be able to play without getting constantly flashbanged. There's something seriously wrong with the lighting in this game and we need additional settings or a patch to fix how bright it is outside or how dark it is in the shade. 

I have no issues like that. It could be card settings.