Make sure you’ve done this before messing with HDR. There are only three HDR slider options available to you in Cyberpunk 2077: Maximum Brightness, Paper White, and Tone-Mapping Midpoint.
Cyberpunk 2077 is getting a bunch of new features ... There's also a randomiser option if you're struggling, with a slider to say whether you'd like to look more "plain" or "punk".
PC users equipped with an RTX 50-series Nvidia GPU can expect to see some impressive graphical gains in Cyberpunk 2077 thanks to the new patch adding DLSS 4 support.