I covered the two side cameras of my Reverb G2 and it seems to help a lot. But also something weird happened as I only needed to temporarily cover the cameras to fix this issue. I’ll have to see how that develops.
I basically did this:
- I had my headset powered off.
- Covered the side cameras using a elastic band I found (slipped it around the headset).
- Turned on the headset and started a flight in MSFS.
- Did not see any crazy shaking anymore.
- Removed the band during the flight and still no shaking.
- Powered off the headset, restarted MSFS and even restarted my computer…
- Cleared Environment Data…
- Still didn’t see any crazy shaking it was doing before, even I didn’t had the cameras covered anymore.
Coincidentally today also came an update to OpenXR Tools. Who knowns if this did something. 
Could someone try this? What is your outcome?