[keycloak-user] No way to use First Broker Login without enabling Create User If Unique

Hi there is there a way to pre-create users and have these users able to link these existing acounts google accounts without also being forced to allow any random google user from being able to create an account? Seems thats How First Broker Login works. Any attempt to disable the "Create User If Unique" step makes the flow unusable with always the same error *WARN [org.keycloak.events] (default task-94) type=IDENTITY_PROVIDER_FIRST_LOGIN_ERROR, realmId=example, clientId=js-console, userId=null, ipAddress=127.0.0.1, error=invalid_user_credentials, identity_provider=google, auth_method=openid-connect, auth_type=code, redirect_uri=http://127.0.0.1:8080/js-console/ <http://127.0.0.1:8080/js-console/>;, identity_provider_identity=......*