When I decided to switch to Fedora, I wanted a safety net. I had a 500GB SSD, so I bought an additional 2TB SSD, so I could make full disk image backups and be able to store 3 of them (I used full disk encryption, so my disk image backups were the full 500GB). And I dutifully made backups, either monthly, before I made a big change, or before a major update. Been doing this for nearly two years now and I haven’t used a single backup image even once. It’s almost disappointing, in a perverse sort of way. I was looking forward to having to learn stuff by fixing things that break, but nothing ever does!