Yes, this is precisely why I use Authy -- for multi-device support with Just Works sync. I've got it on cellphone, work laptop, personal laptop. So even if two

Yes, this is precisely why I use Authy -- for multi-device support with Just Works sync. I've got it on cellphone, work laptop, personal laptop. So even if two of these devices get lost or damaged, I still have the one. I don't believe myself capable of keeping all these "recovery codes" for every service. I don't believe most people are. A 2FA ecology that depends on everyone having their "recovery codes" to avoid a situation where a lost/bricked/stolen device means they are locked out of like ALL their services... is an ecology where most people are at some point going to be locked out of all their services. It's pretty incomprehensible to me that this is the ecology that's been built? I don't know of any other thing with multi-device support -- that includes laptops not just phones, I only have one phone! -- that's as seamless a UX for non-techies as Authy. there are some non-free ones, that still aren't really as good usability wise. DIY setup on your own cloud storage does not even come close.