Even more complicated, for Reverb G2, MSFS uses WMR OpenXR - because SteamVR OpenXR doens’t work well. So all tools that work in SteamVR games don’t work in WMR, despite the supposedly same OpenXR standard.
There is a similar issue with Leap Motion / UltraLeap hand tracking hardware. Somebody needs to write a driver for WMR/OpenXR.