No, i7-6820HQ was not listed, so it seem that installer don't check that. Obviously there is lot of Win 11 capable PC's, but Health Checker is giving wrong results. --> Flood of postings in this thread.
Clean install on Dell T3600, Xeon E5-1620 work well. Next I test clean install to Dell T5500, Xeon X5867.
Something is wrong with the forum Editor right now, it doesn't let me insert a picture from any machine.
I just ran PC Check on my Dell XPS 8930 with Windows 11 and it is happy with it.
Mine was an upgrade from 19043.1081 to Windows 11 Pro.
Microsoft Windows [Version 10.0.21996.1]
Edit:
Now it worked when I edited the post , go figure ?