> There's no way around this - 2FA needs to be bound to a single physical device if you want to benefit from it.
Depends what the benefit is.
From the PoV of my bank, the benefit is that people who use “Password123!” for all of their accounts don’t get their accounts trivially compromised.
From my PoV, the benefit of TOTP 2FA is that my password manager can fill it all in automatically rather than having to find my phone and type in SMS numbers manually. (As a non-iOS user - if you’re on iOS you can have your SMS 2FA codes put in automatically.)