I can see the use case for gmail at least. I tried to access web interface from India and it loaded like for 2 solid minutes before showing up completely unresponsive. I could have had it 10 times faster with a dedicated IMAP client.

Love the raspis, just make sure the passwords are not stored on the sd card because those fail all the time hah.

I self host via vault warden. And I have it locked behind tailscale vpn. Aside from your server itself getting hacked, which is a risk, this is more secure than having passwords on the public internet.