First off, nearly two full years into this “standard” existing only around 1/5 to 1/4 of my accounts support it. And the support is a crap shoot. I am finding some accounts only allowing you to have a single passkey and others such as Amazon expect a certain format making Keepass unusable. I save the key but I guess the response is wrong as Amazon thinks it failed.
ssh keys are great. Amazing. Having those instead of passwords would be a huge upgrade. Most people need a simple key management ui and portable keys then they would be set. But it’s like Password managers and sites that don’t allow copy and paste all over again.