I installed supervised on RPi4/4gb/SSD some time ago, I needed the Pi to do other things (PiHole, Syslog logging, NTP server, etc). Those needs no longer exist (or can move to RPi3) and I’m getting ‘Unsupported System’ warnings that I don’t want to deal with. So I’m thinking the OS route would be less hassle.
Is it as simple as doing a full backup, download backup, wipe SSD, fresh OS install, upload backup and then restore?