As an aside, it drives me up the wall that Facebook's 2FA settings are stuck on SMS. Although other options exist like a Yubikey or a TOTP scheme, even if you select one of those, Facebook still sends you a 2FA SMS whenever you try to login.

At this point I ignore it and use my TOTP app anyway, but it bothers me to no end, as it leaves my account that much more vulnerable to a hacker intercepting the SMS in transit and using it to break into my Facebook account. Facebook does not allow you to disable 2FA SMS without disabling 2FA altogether.