Don't feed the Trolls brother! I'm tired of commenting when people make statements that OLEDs are too dark and such, and I question whether they actually own an OLED TV. I have a LG C8 65" OLED TV, and have been gaming on it daily since 2018. It's on my 3rd floor beach house. We have two balconies on the 3rd floor, so there are a lot of windows and lots of light filtering into the room. I usually put the front balcony shade down, and gaming on my TV is perfectly fine during the day. At night I watch my 4K UHD movies collection, and nothing looks better than an OLED TV. It is plenty bright. I'm currently looking at the 77" C2 or C3. Don't need the G3. Don't mind it, but don't need it either.
As for gaming on my LG OLED. I, too, turn off the HDR mode when playing first-person shooting games (all of the COD games), and musical rhythm games where precise inputs are warranted. With HDR on, the input lag affects the outcome of the games, and they are quite noticeable. With HDR off, my inputs are precise for those genre of games. I have HDR on for all other genre like RPGs and so on.