When they first had HDR and the adjustment bar, it was easier for people to adjust the HDR depending on their TV.
With it gone, it either looks good on your tv or doesn’t unless your settings are off.
If you don’t think your settings are wrong, it might just be the game as I feel they removed the slider to meet in the middle. So some it looks great, some it looks bad.
I recommend checking out rtings if they have a calibration for your tv. You really need to have it calibrated yourself but the internet gave me a very good starting point.
Hopefully you can figure it out so you can enjoy it. The game is night and day when your HDR is working as intended.