Gamma, white balance and color saturation adjustmen
Games are designed for OLED screen of original Rift. There are issues in dark games. We need to calibrate gamma, brightness (no backlight) and color for correct results.
Antonio Casado commented
In Oculus Quest, too!. I have played a "black clipping" pattern in all the video apps that allow me, and in ALL there is BLACK CRUSH!.
I pressume is better a patch to the composer for fix levels instead change the screen calibration manually by the user... But only if works as "official calibration from the fabric"