I recently purchased 4 YubiKey 5c nfc for the two adults in the family. Good practice is for each user to have a backup 2*2 =4. We share some accounts and the easiest way to manage this is for each of us to have a primary and a backup key registered for each account we individually use. It would be nice if we could register 4 keys to the shared payPal account. It is very important that we register at least 2 because the two users workstations are separated by a couple flights of stairs. I have not been able to register a second key much less the desired 4. The only way we can benefit from the enhanced security that FIDO2 offers is some kind of ridiculous sneakerware set up. Imagine if all websites were set up to only use one key and we had to keep track of which keys worked on which site? Sounds like an SNL skit!
My path to getting a single key registered was not smooth. First attempt using Firefox on a MBPro 2019 running Ventura failed to register the key right after the insertion step. Switching over to Safari I got one step further with a prompt that asked me to select between another method and USB key... this entry box timed out so fast that I never was able to select USB and continue. Next attempt which has worked was using Chrome. But it will not allow me to enter more keys.
These keys have been around for several years so the difficulty with using them on PayPal is a big disappointment. By the end of this year it will be a deal killer.
