Anton Piatek on Nostr: npub19lt42…6qfjk sorry if this is a stupid question, but I've been wondering about ...

npub19lt4284mghqxekzm6n5njxurnxrxhqhrva2leusdsuu5ja5jeycq66qfjk (npub19lt…qfjk) sorry if this is a stupid question, but I've been wondering about hardware tokens (fido etc) for a while...

Do you need a spare in case you lose one or do most sites offer some other secure recovery?

And how hard is it to enroll a replacement device should you lose one? Do you need to do it on every site again?