I mean , its not a huge deal-breaker to immersion...I agree. I over stated that.
But being a photographer; to by eyes its annoying.
A quick fix would be to have in-game color/contrast/shadow controls so suit anyone's tastes. I'd put color way down and up the contrast a bit and add a little shadow detail clarity. I like my fantasy worlds dark and gritty; not colorful and shiny (except for DOS series

There are pretty good options like this for Pathfinder WoTr, If I remember right. Though the art style kind of ruins if you want a more realistic take on lighting.
And it seems Larian maded worst in the later patches from what I am reading in the forums? The game WAS a bit darker/shadows in prior versions it seems.
I used this amazing tool..SweetFX its called I think...to edit the engine lighting when I played Deadfire because it again felt too colorful and blurry. Wonder if that will be possible with BG3?