ROG Strix OLED XG27ACDMS HDR issues?

I don't know if it's because it's an OLED that I'm having this issue (it's my first), but when I turn HDR on in Windows settings and in games it causes my screen to become much darker in brightness and have much more washed out colors. I figured I'd ask because I have tried every possible solution to fixing this but I can't find one. I've played through all the settings, and my Samsung doesn't have this issue. It genuinely feels like the colors on this monitor are better when in SDR than HDR and I have no clue why.