Redfall - HDR Optimized Settings (Patreon)

The game DOES USE/APPLY Xbox HDR Calibration app settings.

Even if the game actually applies the system-level HDR Calibration app settings, it does it wrongly as shown in detail in the chart below.

So if you use HGIG you could choose to adjust the system only for this game and revert to correct values for other games or personally I recommend to just stick with Dynamic Tone Mapping and let it do the adjustments for it.

The game also provides additional in-game HDR sliders which in all cases I recommend to leave it to Default (0) as those already represent a balanced exposure/gamma.