bartbes

Easily solved by just keeping some state:

    /^=====/ { inentry = !inentry; next }
    inentry

Possibly without 'next' if you want the marker lines too.

You can go to terminal-normal mode using ctrl-w N, and then you can select and yank as usual. To paste, you can use ctrl-w " <register>. Also see :help terminal.

You can load your .profile into your current shell using either '. ~/.profile' or 'source ~/.profile'.

The "key" in that sentence, the one that gets padded, is the (RSA) private key, not the AES key.

Sure, but you can revoke them without changing your password or revoking other app passwords, making it much easier to recover if they do leak.

I was honestly surprised to see all this gpg setup, yet no mention of application-specific passwords. I've been using email clients with what google now calls an "App password" for years.

I think they mean "remove the last digit".