Media Bundle entity type does not have an access controller

There is currently no access control handler for the Media Bundle entities. As a result, users who do not have the administer media bundles permission cannot view or see the Provider (bundle label) on the /admin/content/media display.

Possible code solution

I've been able to solve this for the particular project that this issue has arisen in through a custom access handler implementation and specifying it via hook_entity_type_build(). However, I'd hazard a guess that this is probably a common issue that needs a permanent solution.

<?php

namespace Drupal\media_entity;

use Drupal\Core\Access\AccessResult;
use Drupal\Core\Entity\EntityAccessControlHandler;
use Drupal\Core\Entity\EntityInterface;
use Drupal\Core\Session\AccountInterface;

/**
 * Defines the access control handler for the Media Bundle entity.
 */
class MediaBundleAccessControlHandler extends EntityAccessControlHandler {

  /**
   * {@inheritdoc}
   */
  protected function checkAccess(EntityInterface $entity, $operation, AccountInterface $account) {
    switch ($operation) {
      case 'view':
        return AccessResult::allowedIfHasPermission($account, 'access media overview');
    }
    return parent::checkAccess($entity, $operation, $account);
  }

}