SirHumphreyAppleby:
Another rclone user here. It hasn't been mentioned, but rclone can also encrypt data. I presently use it with both Google Drive and OneDrive for daily backups and have simple scripts to store multiple revisions of source code and other files where a backup history may be useful.
I previously used Duplicatti, but I found rclone much easier to work with.
I use rclone with B2 and I have all my data encrypted. There was a bit of effort involved in setting it all up and deciding on the best options to use but now that it's all done and I have scripts set up I just issue a one-word command and the backups happen.
I'm currently storing 11GB, which is just over the 10GB of free storage. From 2018 when I started using B2 until today I've racked up an entire 15 cents of bills. Backblaze has my credit card details but they haven't billed me yet, I assume they're waiting until it's worthwhile for them to bill me without losing it all in CC fees.