Quest 2 headset requires a back-light level adjustment.
Go and other headsets provide a back-light level adjustment. Quest 1 has a user provided hack to do this.
Without a back-light adjustment to dim the Quest 2 headsets I have purchased they will be going back as defective. The extreme glowing of bright objects, massive godray effects and lack of even close to black objects makes this headset mostly junk and will be returned for credit.
A simple back-light dimming control for the user would resolve most of this effect. If the headset has no circuitry to dim the backlight, most of them will have to be rebuilt.
Facebook is getting a bad reputation in VR environments and forums due to this problem and will kill much of Facebook's future sales for bad technology releases as a product to be avoided.