Currently, managing and using close to a 1,000 passwords, all around 35 characters and completely random, is an absolute breeze using 1Password (and likely any password manager of choice) and my data is securely stored in a cloud I can access from any device (and from my neighbor's laptop if disaster should strike).

No way that I am handing over this functionality to a bunch of private keys that I can only access when logged in using a device from one specific vendor.

The security benefits are vastly less than the loss in portability/emergency use.

So the idea of passkeys is fantastic, but as long as I cannot store them in a central platform agnostic place, it's passwords for me.