This is a bummer... I've been using my desktop as a hack for many years. Probably on my 4th build. But the lack of Nvidia support is going to mean it will be windows on the next build for the first time in a long, long time. I have a 2018 15" MBP so I'll have to keep around a legit Mac going...
Attaching my IOReg file... maybe someone can point me in the right direction?
Looks like I am using XHC1 2 etc... Should it be EH01 EH02 and so on?
Also when not using a patch DSDT it shows differently, see attached