Want to add that “OpenXR session init failed” popup will still occur on some apps that used to work (Far Cry 5 / mpc-hc) since roughly the last quarter of November 2021. OpenXR is used by mixed reality portal and SteamVR also confirms OpenXR is being used.
The only way to run those apps is to set VorpX to use SteamVR.
Using samsung odyssey wmr headset,