Hello,
Since I have two MacBook Pros I took a chance and upgraded from Mac OS Catalina to Mac OS Big Sur to do a preliminary test on Starry Night Pro Plus 8.1.
So far I have not seen any issues. I loaded Big Sur on my late 2017 15.4 inch MacBook Pro that is spected out. Hoping I will continue to have no issues.
I also have a 16 inch MacBook Pro that is spected out. I have not installed Big Sur on my 16 inch MacBook Pro yet. Might take a chance in a month.
Good luck Starry Night Family.
Regards,
Andre D Ficklin