Passkeys were hot last year, don’t seem to be catching on, here’s one view of why that is. Dark and sobering but convincing: https://fy.blackhats.net.au/blog/2024-04-26-passkeys-a-shattered-dream/
Passkeys: A Shattered Dream

Firstyear's blog

@timbray I guess I’m in the minority here then because I love them. It’s true some sites have better support than others. My one complaint are the browsers and password managers battling to be the owner of my passkeys. I should be able to set a default Passkey Manager for my device.
@zoinks
I love them also. I do not relate at all to the bad experiences described, and I think it’s because I do not have any Big tech account trying to grasp my passkeys, and I do not use hardware keys either.
@timbray