I am converting my Unity project from SteamVR to OpenXR (never used OVR before) to be able to submit to the Oculus store now that it accepts OpenXR. One of the functional requirements is that the app must pause when the user removes the HMD or opens Oculus Dash (VRC.PC.Functional.3). The example code for this: https://developer.oculus.com/documentation/native/pc/dg-vr-focus/ relies on OVR GetSessionStatus. How does one meet the requirement with OpenXR?
Equivalent Unity docs are here: https://developer.oculus.com/documentation/unity/unity-lifecycle/
(I have to admit that I'm somewhat unclear as to how exactly you've integrated as you seem to be asking a mix of Oculus CAPI native, OpenXR native and Unity questions.)