I don't understand: 2FA in a password manager makes it vulmeran

For maximum security, you can store your 2FA token elsewhere, like a YubiKey (see Yubico Authenticator) or Google Authenticator, and keep the recovery codes safe somewhere outside your computer, but for general purpose use, storing your 2FA in your password manager is an acceptable solution due to the convenience benefits it provides.

I still think it is better to split passwords and 2FA on two systems for security purposes.