Earlier quoted context omitted.
Is there a convenient way to sync it across multiple devices?
Yeah, I just use Google Drive. I know Syncthing is also one option many people like.
Ah, so it's basically the "sync an encrypted database file" model that 1password used to use until their recent migration to their own cloud service?
I used to use that as well, but I've since come around to the idea of having a sync server that is a bit more than just a file relay. It complicates the security model a bit, but it allows using browser extension only clients (without needing to give them access to my file syncing account), rate limiting, 2FA, a higher chance of being able to rotate the passphrase without leaving copies of the old database hanging around everywhere, password sharing and much more.
In my view, it's worth the tradeoff.