Duplicati does the client side encryption with the Key never leaving my device? Backblaze didn't offer that when I was choosing a cloud backup and the reason I

Duplicati does the client side encryption with the Key never leaving my device? Backblaze didn't offer that when I was choosing a cloud backup and the reason I went with the competition. But Crashplan (RIP consumer version, now only 2x as expensive small business remains) client turned out to be just so ... amateurish in many ways, now that I actually had a drive die on me and need to restore a bunch of data. I'd love to switch to a more competent backup provider and cancel Code42/Crashplan once the restore is done in hopefully 2-3 Months. Am I right that Duplicati only works with B2, not their cheap $6/device personal backup stuff? That would be a significant price increase. At that price I'd probably prefer the $1/TB/Month of S3 Glacier Deep Archive, though restoring at ~$100/TB seem quite painful.