I think it’s a nonstarter because the n00bs and n0rm1es will have no idea what to make of it, and will quickly go back to passwords because they just work predictably.
To me it reeks of something that looked great, when you show a room of engineers. But for regular people?
Perhaps, but I recently added passkeys for Apple and Google accounts and the actual enrollment process and login didn't feel much more complicated than using the built in password manager for Chrome plus Touch or Face ID which people are already familiar with.
That itself may be too complicated for some but it essentially was a few automatic prompts and instructions to scan my finger to login after it was done.
To me it reeks of something that looked great, when you show a room of engineers. But for regular people?