JohnB if it would have just not run 'apt update' during the mysql conversion it would have saved my ass hours of stress... IDK why it even has that?! The very first got damn thing you do in step 1 is apt update, zero reason for the mysql conversion script to be running that again, which screwed me over.
Even putting a note about how the new backups system is going to add another full-run copy of all your sites would be nice, like people aren't going to just assume that's what's gonna happen, and Enhance shouldn't be assuming everyone's backup server has capacity to double in size.
I'm still shook by the experience lol