I've followed the instructions here: https://forum.il2sturmovik.com/topic/79847-step-by-step-instructions-for-openxr-and-necksafer-for-wmr-sets/ (except for the part about launching IL2 from Steam)
OpenComposite shows OpenXR selected, but when I run WMR and then IL2 (vr enabled), IL2 simply launches in full screen mode, no vr.
I don't recall having this problem on my old machine (both W10).
I've placed the 64b openvr_api in the /bin/game folder as instructed)
With WMR running and openxr selected in OpenComposite, IL2 simply opens in a standard screen view, and the headset still shows the WMR cliff house. I've tried re-doing the entire openxr process, but no change. I can get VR to work with SteamVR (also selected in OpComp)