At the moment once E2E is enabled with S3Drive, it applies to all locations globally.

With Rclone there is a possibility to set custom prefix e.g. "photos/".

Shall we allow to control what data is encrypted and which not?

Our position so far is to encrypt everything by default (simple and secure), but there are couple reasons where users might not want to encrypt some locations.

E.g. if they have high-quality videos, streaming (decrypting on the fly) them is a performance/battery hog.