Passkeys require the cloud to be ever present. Maybe on Venus where the clouds never go away, but on Earth all it takes is some rain, and suddenly you have clear skies.

I'll stick with keepassxc on my personal laptop, rather than put it in the hands of Google et al. and their sunset happy ways.

Atleast there's no segue into the blockchain and/or crypto as a 'benefit'. Small mercies and all that.