Anyone else see this : Option Key wont bring up other volumes on reboot
I have to use system preferences to reboot to another disk. Is it Catalina or having the new wireless apple magic keyboard?
I made this comment before and I'll say it again: based on many of your other postings, too many things that are normal with Catalina are "funky" with your installation. How about a clean, fresh re-installation of Catalina?