Comment by jesseendahl

Whether or not you can be compelled to unlock your phone doesn't really have anything to do with passkeys. If you can be compelled to unlock your phone, then whatever you have on your phone (including the stuff in your password manager/credential manager) is potentially up for grabs. In this threat modeling scenario there's nothing unique about a passkey vs. a password.

And if you're against using credential managers at all, because you only want to have the password stored in your brain and nowhere else.... then that creates different problems, namely it dramatically increases the odds that you will use the same password across multiple services, which is bad because then attackers can steal your password from one service and use it to login to a bunch of other services.