I am still trying to get my camera function back without the nuke option. You said our version of Catalina does not have apple camera assistant but FYI I just looked and it's on the activity monitor. I force quit but it made no difference
MacBook Pro - M2, Ventura 13.6 Safari Tech Prev 17.0 Safari 16.6 Firefox 116.0.2 iPhone 7 Version 15.8