zammad/app/frontend/apps/desktop/pages/personal-setting/graphql/mutations/userCurrentLinkedAccount.graphql

mutation userCurrentRemoveLinkedAccount(
  $provider: EnumAuthenticationProvider!,
  $uid: String!
) {
  userCurrentRemoveLinkedAccount(provider: $provider, uid: $uid) {
    success
    errors {
      ...errors
    }
  }
}