Recovery codes are meant to be recorded when enabling 2FA. They can then be used (once per code) in place of a 2FA code, in case of your predicament. Have you perhaps noted these down somewhere?

This circumstance is how 2FA is meant to work, otherwise an unauthorised someone could access your account, especially if they had comprised your primary email account. More often than not, people do not secure their email accounts.

On one hand I'm glad there is no way to access an account without any of the agreed methods, and on the other empathise that this is scant consolation for losing an account :-(