Bitwarden users who store their email account credentials within their Bitwarden vaults would have trouble accessing the sent codes if they are unable to log in to their email.
To prevent getting locked out of your vault, be sure you can access the email associated with your Bitwarden account so you can access the emailed codes, or turn on any form of two-step login to not be subject to this process altogether.
obviously you do but it can be leaked, phished, or hacked in other ways. a second “factor” such as possession of a token device is a safeguard against that.
you can actually read about all this many places online, it’s nothing new: https://en.wikipedia.org/wiki/Multi-factor_authentication
From the wikipedia link you posted:
It also lists more advantages than disadvantages.
yes, that’s the whole point, to recover your account if you lose your MFA device. what are you even trying to say?
If you can login without the second factor then what’s the point?
We already covered this at the top. You keep the recovery codes unexposed to the internet or obfuscated in some way, unlike your usual password. Therefore you can have confidence that they haven’t been hacked, leaked, or whatever like passwords often are.
anyway I tire of your sea lioning. if you are truly asking good faith questions you can research on your own from here.