Sorted! Reverb G2 - Mixed Reality Portal install is stuck at System Compatibility Check

User Support Hub Virtual Reality (VR)
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4

I opened regedit, navigated to “Computer\HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Holographic” and changed the value FirstRunSucceeded to 1

I can now use my headset on latest Windows 11 build. For now.