This method worked perfectly for me in Big Sur! Catalina too, after I rebuilt kextcache explained in second link. Long live the 002/3!!!
https://m.youtube.com/watch?v=F0jq8CXJRBU
And follow this for Catalina to rebuild kextcache.
https://www.travelertechie.com/2019/...epair.html?m=0