I see many posts asking about what other lemmings are hosting, but I'm curious about your backups.
I'm using duplicity myself, but I'm considering switching to borgbackup when 2.0 is stable. I've had some problems with duplicity. Mainly the initial sync took incredibly long and once a few directories got corrupted (could not get decrypted by gpg anymore).
I run a daily incremental backup and send the encrypted diffs to a cloud storage box. I also use SyncThing to share some files between my phone and other devices, so those get picked up by duplicity on those devices.
My important data is backed up via Synology DSM Hyper backup to:
Local external HDD attached via USB.
Remote to backblaze (costs about $1/month for ~100gb of data)
I also have proxmox backup server backup all the VM/CTs every few hours to the same external HDD used above, however these backups aren't crucial, it would just be helpful to rebuild if something went down.