Enabled it in-game. Tried default setting at first then raised the in-game max brightness from 1000 nits to 1200 nits to see if there was a difference but there wasn’t.

I just tried raising the deck brightness and that actually made it look a bit better. I feel kinda dumb now that I didn’t try that before. Still not the amazing difference people made it out to be but i could actually see a little bit of difference now, at least when I look at something bright.