I wish there was a really good Hamsters Lemmy…
If you are comfortable with the command line, mbsync / isync allow you to save your mail offline with the ability to search and read it later on. You can use a cron job to fetch the email however often you want it.
If you use emacs, you can set up gnupg integration for easy encryption and decryption of files.
I would also read up on expiration of keys, and how you can export (backup) and import a key. The latter can also be useful if you want to use the same key on multiple devices.
i just mean the one schizo mentioned
i have a 2017 lg 5k monitor (same goofy software trick) that works with ubuntu x11
More on why the update is not on F-Droid yet here: https://github.com/meditohq/medito-app/issues/195#issuecomment-1790255585
You could take a look at: https://github.com/aclements/notmuch