I am using a Reverb G2 headset with a Microsoft Store copy of MSFS 2020. I have a problem where the VR display will get stuck in a dimmed mode. I can successfully have a couple of flights, in between which I will switch to the computer monitor (Ctrl-Tab) to set up the next flight. At some point, when I switch from the PC screen to the VR headset, the VR presentation is dimmed. When in on the PC screen, the presentation is a bright clear sky day. When I Ctrl-Tab switch to VR mode, the VR image is briefly bright on the PC and then dims. The appear is as if it is dusk. I don’t have a clear formula to correct the problem however getting out of MSDS and ecitting WMR generally resolves the problem.
I get it too using a Radeon 6800XT with the G2. I thought it was a Radeon driver issue, but it seems to affect nVidia cards as well. It’s a real pain and I have no idea why it happens. I usually have to at least restart the flight and failing that, restart the sim.