content_translation_entity_bundle_info_alter

content_translation_entity_bundle_info_alter(&$bundles)

function content_translation_entity_bundle_info_alter(&$bundles) {
  foreach ($bundles as $entity_type => &$info) {
    foreach ($info as $bundle => &$bundle_info) {
      $bundle_info['translatable'] = \Drupal::service('content_translation.manager')->isEnabled($entity_type, $bundle);
    }
  }
}