Is it suitable for drupal 10.2. x?

According to the admin form, its a placeholder:

	  public function buildForm(array $form, FormStateInterface $form_state) {
    $config = $this->configFactory->get('jstimer.settings');

    $form = [];

	// Placeholder method for global jstimer settings.  Currently none.

    $form = parent::buildForm($form, $form_state);
    return $form;
  }