@nebulon Posting here the reply from project owner, in case it is useful to someone later on:

Kind of. The protected status is "inherited" from the parent note when creating it. So if you make all notes protected then any new note created will be protected by default (since any possible parent is also protected). This applies while in protected session.

Yes, in Options -> Other -> Protected session timeout

This is not related to Trilium, but the previous Ferdi maintainer (who was different from the owner), has restarted working in a fork, Ferdium.

There's no binary out, but I'm on the alpha and all is working as before for me, so I'm happy. 🐶

Link: https://github.com/ferdium/

@girish Good point, I thought this was coming from cloudron package
I'll investigate where this is coming from further, thanks for the hint !

@zezaung hm in this case, it may be better reported in the upstream project I think, they are the experts on their app internals.