FWIW, my modest experience with 2020 MacPro:
Did ALL fresh installs.
No OSX backwards compatibility allowed.
Super Duper to clone a back up OSX drive but here is a little screwballling
around necessary (just follow the on screen prompts or ask apple care) for your FIRST clone.
I too have NO functioning dynamic link connection MacPro to Audition.
I have no plug ins so my machine hums.
I run my old machine (OSX High Sierra) on the MacPro 2020 with
screen sharing to copy files or operate obsolete software.
That’s all for now, best of luck !!
