OIDC applications can bypass the {project_name} login page by hinting at the identity provider they want to use. You can enable this by setting the `kc_idp_hint` query parameter in the Authorization Code Flow authorization endpoint.
With the `kc_idp_hint` query parameter, the client can override the default identity provider if you configure one for the `Identity Provider Redirector` authenticator. The client can disable the automatic redirecting by setting the `kc_idp_hint` query parameter to an empty value.