Comment by elgertam

I accidentally set up a passkey for one application, a certain accounting software. Now when I login, I'm required to give both the passkey from my password manager and usually my password, too. It's a usability mess and basically makes it impossible for me to share my login with e.g. my wife when she might need to login to that account. That's the practical trap.

The real trap is when Google decides in a few years that third party passkey managers will no longer be granted an ability to use the Chrome extension APIs, and Google Sync and other pay-to-play vendors are the only supported ways to handle passkeys. uBlock was just the beginning.

I'm sticking with my passwords for now. Some providers ::cough:: Meta ::cough:: have become openly hostile to allowing anyone to login to their services, but most haven't made it too cumbersome yet.