OpenXR on Windows

I hear Nebula for Windows is scheduled for Q1 next year.

Does it mean there is now a timeline for OpenXR on Windows?

As I recall, a bunch of headsets had OpenXR on Windows from release date.
Based on this, I can only imagine Nreal is deliberately delaying it.

Is it hand tracking? - Hand tracking is not necessary in the first release.
Is it 6DoF dependency on Qualcomm CPU? - initial release could easily be 3DoF only or quasi 6DoF with generated data.
Will OpenXR on Windows only be supported on next gen AR2 glasses?
Is it something Qualcomm is blocking in the license?

After 3 years of Light on the market what could be strategic reasons behind delays?
Could you please clarify?