FYI - looks like with the Big Sur 11.4 update, physically-based rendering is now working on the M1 Macs. This had been the only feature I'd found not fully functional. The folks over at ChiefTalk alerted me to this and they weren't even running the newly released X13 which reportedly supports M1 chips per the Chief Architect forum moderator. I'm using HD Pro 2021 (X12) so hopefully others here will have similar success even if not yet officially supported by CA.
Support for Mac M1 ARM
in Sales Related Questions
Posted
@benriver
Just wanted to see if you had any further feedback on your use of HD Pro 2021 on the M1 chip and the physical camera render views?
Cheers
Brent