You probably aren't missing anything unless you are doing ridiculously large amounts of backups. I'm using Borg as a disaster recovery backup of a backup server.

Borg has issues properly maintaining the size of its local cache and that results in RIDICULOUS amounts of ram being consumed at runtime unless I manually clear the cache out periodically. It also brings in some python package for something FUSE related that constantly vomits a warning to the console on each run on Ubuntu.

I'm still not 100% sold on migrating to Restic. It seems to not suffer the same cache or FUSE problem (since it isn't Python) so far but the overall archive sizes seem to be a bit larger than Borg and I have to pay for every byte of storage I consume.