That’s the hard case. When you can’t predict what a client will ask for, backing up the whole project folder is simpler than trying to pick files, and moving finished projects to an archive keeps the active set small.

Fair points. The UI does catch orphaned disks, and with sensible prune settings the newest copies stay anyway. The written routine mostly helps when you’re clearing out a lot of old guests at once and want a checklist to follow.

Totally get that. You don’t have to back up everything, just the stuff you can’t replace: photos, documents, configs. That set is usually small enough for an old USB drive plus a cheap or free offsite option. Rebuildable stuff (media, ISOs, containers you can redeploy) can skip it. Imperfect backups of the important 5% beat a perfect plan you never get to.