I don’t think it’s worth the devs’ time to implement e2ee for DMs, there are lot of other things that need to be fixed first. Not only that, but if it’s implemented in Lemmy, it’d make Lemmy non-interoperable to DM users from other federated platforms such as Mastodon or KBin. Which, I’m not sure works right now, but in theory would be possible.
Also, yes, that is generally the case.
What’s everyone’s workflows with these systems? Do you catalog both physical and digital documents? Where do you store the documents?