The first run of the backup to iDrive Cloud took about 24 hours for about 90GB of data. That’s pretty slow. The good news is that I won’t have to do that very often and the subsequent run was less than an hour.
By Speedtest, I should be getting a little over 9Mbs. So, the backup time roughly makes sense. An hour is fine for the incrementals so this should be OK.
I still haven’t tested restoring so that’ll be the next thing that I try. If that works, then I’ll try restic with Backblaze B2 to see how that goes.