For now my server doesn’t have very important data most of it are your “Linux isos” I can just download again and I’m thinking of starting to move my file and photos to the server but in afraid. What if I get a ransomwarei don’t realize and all my backups get encrypted too? Or if the backups are corrupted and my disks breaks? But also I’m afraid about cloud because I’ve seen some posts about people getting their google accounts closed without notice for breaking TOS (maybe they did something wrong maybe not).
I backup to Backblaze b2. I encrypt myself using rclone. Costing me $1-2/mo for about 100Gb that I’m currently using.
API key I use for automated backups is pretty much limited to write only and files are set to hidden when deleted, so not much risk, just an annoyance, if the key were stolen and they defaced my backups.
Once a year I might go delete some history to reduce my usage.
I lean towards scripts to automate setting up a system, so I don’t do full system backups. Downloaded video I also mostly skip using mirrored storage. In the event of a real disaster, its an acceptable loss.