Bitwarden Authenticator is a standalone app that is available for everyone, even non-Bitwarden customers.
In its current release, Bitwarden Authenticator generates time-based one-time passwords (TOTP) for users who want to add an extra layer of 2FA security to their logins.
There is a comprehensive roadmap planned with additional functionality.
Available for iOS and Android
Good luck getting your vault compromised.
Unless you have a weak password or the vault isn’t encrypted (which it is, AES256 iirc and you might be able to change that on a self hosted version), I don’t see that happening.
Most password manager hacks don’t attack the encryption or password themselves (my password is very long), they find/create a side channel. For example:
Every secure system can be defeated, but it’s a lot less likely that two secure systems will be defeated at the same time. So I keep my passwords and second factors separate. It’s unlikely that either will be compromised, and incredibly unlikely that both will be compromised at the same time.