In AuthorizationServices support for displayName exists in:
class ASAuthorizationSecurityKeyPublicKeyCredentialProvider func createCredentialRegistrationRequest( challenge: Data, displayName: String, name: String, userID: Data ) -> ASAuthorizationSecurityKeyPublicKeyCredentialRegistrationRequest
but is not supported in the corresponding class:
class ASAuthorizationPlatformPublicKeyCredentialProvider func createCredentialRegistrationRequest( challenge: Data, name: String, userID: Data ) -> ASAuthorizationPlatformPublicKeyCredentialRegistrationRequest
I was under the impression that this should be supported in public key credential registration?