Trying to use WebAuthn as a signup\login

I am trying to use WebAuthn as an only way to sign up or login.

I have made this Methods enabled (both device and biometrics) but do not see any prompt during registration.

Moreover, sign up page requires me to enter verification code from email ,while I just want to have magic link in the mailbox, not code.

Seems like additional restriction here is what is the preferred way for login

And biometrics is not free, again. Why free options, which do not cost Auth0 anything, are made paid?