What I meant is that those upstream apps already exist in F-Droid, (K-9, Tusky, OpenVPN client, dozens of XMPP clients etc) so there is probably no point in using the Librem fork of them unless you use Librem.one? Or maybe I am missing something.
For now I guess those apps should work with Librem.one account, although I cannot confirm it since I don’t
plan on using Librem.one.