Even in my environment, when I boot MSFS2020 from PE, it doesn’t work well. It will run on the steamVR Room.
I stopped using PE and started steamVR manually after MSFS2020 and enjoyed VR.
- Only Pitool is running (steamVR is closed)
- Start MSFS2020 normally
- Launch steamVR immediately (before the MSFS2020 launch logo appears)
I would be happy if other remedies were shown.