The game is NOT using/applying Xbox/Playstation HDR Calibration app settings.
The game has an average HDR implementation which doesn't differ too much from its SDR version.
It still offers some HDR controls as Peak HDR Luminance (which can go up to 1.500 nits), Contrast and Paper White which by default is overly contrasted and bright and need to be adjusted.
If you have an LG OLED and:
> you're using Dynamic Tone Mapping or Dynamic Contrast:
Set Peak Brightness slider to: 1.500 (nits; Max);
Set Paper White slider to: 100 (nits);
Set Contrast slider to: 100.
> you're using HGIG:
Set Peak Brightness slider to: 800 (nits);
Set Paper White slider to: 100 (nits);
Set Contrast slider to: 100.
If you don't have an LG OLED and:
> you don't have an HGIG option:
Set Peak Brightness slider to: 1.000 (nits);
Set Paper White slider to: 100 (nits);
Set Contrast slider to: 100.
> you're using HGIG:
Set Peak Brightness slider to the corresponding real Peak HDR Luminance of your TV in "nits":
Set Paper White slider to: 100 (nits);
Set Contrast slider to: 100.
As you can see, decreasing Paper White and increasing Contrast a bit in all cases will improve the overbright/overcontrasted default settings.
https://www.patreon.com/posts/63957377