I had the same question, and the text provided on the FAQ does not, in my opinion, answer a part of the question.
I understand “All user data is encrypted on the main block storage and in backups too”
as : “WE (/e/) encrypt any/all ecloud accounts’s data with our private key so that French Gov can’t spy on them and if it did steal them, could not read it. But since we are under French Juridiction, we could face a well-formed legal demand and be forced to comply into decrypting some specific (or all) data from a specific user”
My question was : Can I (myself) encrypt from my side (PC and/or smartphone) any data I store onto my Ecloud, so that ONLY ME can cipher/decipher it ? Eg through PGP, or OpenKeyChain which is shipped by default with /e/?
Futhermore, a few days ago, a blogger published a video in which he said you (/e/ Foundation) can’t access or read data/mails/… on the eCloud, and it really strike me, because I’m pretty sure it’s not the case, eg the /e/ Foundation CAN access and read data. https://lbry.tv/@TheLinuxExperiment:e/the-ultimate-degoogled-android-rom,-now:3 (at 4:55)