It doesn't work on image field

I just encountered this issue with an image field using Drupal 9.5.11. field_config_cardinality settings on the image field are ignored by the site.

Added next widget that replaces original one.

<?php
/**
 * Add field_config_cardinality support to image widget.
 */
class CardinalityImageWidget extends ImageWidget {

  /**
   * Gets the cardinality of the field.
   *
   * @return int
   *   The cardinality of the field.
   */
  public function getCardinality(): int {
    if (
      $this->fieldDefinition instanceof ThirdPartySettingsInterface
    ) {
      return (int) $this->fieldDefinition->getThirdPartySetting('field_config_cardinality', 'cardinality_config');
    }

    return $this->fieldDefinition->getFieldStorageDefinition()
      ->getCardinality();
  }

  /**
   * {@inheritdoc}
   */
  protected function formMultipleElements(FieldItemListInterface $items, array &$form, FormStateInterface $form_state) {
    $elements = parent::formMultipleElements($items, $form, $form_state);
    $cardinality = $this->getCardinality();
    $elements["#file_upload_description"]["#cardinality"] = $cardinality;
    if (count(Element::children($elements)) > $cardinality) {
      $elements[$elements["#file_upload_delta"]]['#access'] = FALSE;
    }
    $elements[$elements["#file_upload_delta"]]["#cardinality"] = $cardinality;
    if ($cardinality === 1) {
      $elements[$elements["#file_upload_delta"]]["#multiple"] = FALSE;
    }
    return $elements;
  }

}
?>

and alter original:

<?php

/**
 * Implements hook_field_widget_info_alter().
 */
function custom_module_field_widget_info_alter(array &$info) {
  if (isset($info['image_image'])) {
    $info['image_image']['class'] = CardinalityImageWidget::class;
  }
}

?>

The tricky thing is that ImageWidget and FileWidget has complex form that depends on cardinality, so there are now easy way to change it.