The game is NOT using/applying Xbox, Playstation or PC HDR Calibration app settings.
The game has a good HDR implementation as it actually offers an in-game Peak HDR Luminance slider (in nits) which can go up to 4.000 nits, along with additional HDR controls.
Black levels by defaults are not great but they can also be adjusted/fixed in-game.
If you have an LG OLED and:
> you're using Dynamic Tone Mapping or Dynamic Contrast:
Set Max Brightness slider to: 4.000 (nits)
> you're using HGIG:
Set Max Brightness slider to: 800 (nits) or 1.000 (for G2/C4) or 1.500 (for G3/G4/C5) or 2.400 (for G5)
If you don't have an LG OLED and:
> you don't have an HGIG option:
Set Max Brightness slider to: 1.000 (nits)
> you're using HGIG:
Set Max Brightness slider to the corresponding real Peak HDR Luminance of your TV in "nits"
In all cases set Brightness slider to 20 (as default 15 is a bit too dim/dark) and Min Luminance slider to 0 (for perfect black levels, especially on OLEDs). You can leave HUD Luminance slider to Default/1
BONUS:
On Consoles: use the "Performance" (60fps) graphic mode for best smoothness and input latency
On PC:
- Use my UET Mod to improve performance, lower latency and have better clarity at the same time, all with no visual loss ;)
Enjoy!
-P