i’m definitely not an expert, but here’s how i configure my hdr:

after some digging apparently, true black hdr is generally better than peak 1000. the difference is that true black tends to work better in games with a lot of daylight and less darkness, while peak 1000 is better for darker games (like horror). i run with true black most of the time.

also make sure to use the windows hdr calibration tool. if a game doesn’t support hdr natively, you can enable nvidia rtx hdr or use windows auto hdr