diff -u b/core/modules/comment/comment.routing.yml b/core/modules/comment/comment.routing.yml
--- b/core/modules/comment/comment.routing.yml
+++ b/core/modules/comment/comment.routing.yml
@@ -135,7 +135,7 @@
   path: '/admin/structure/comment/manage/{comment_type}'
   defaults:
     _entity_form: 'comment_type.edit'
-    _title_callback: '\Drupal\comment\Controller\CommentTypeController::commentTypeTitle'
+    _title_callback: '\Drupal\Core\Entity\Controller\EntityController::title'
   requirements:
     _entity_access: 'comment_type.update'
   options:
reverted:
--- b/core/modules/comment/src/Controller/CommentTypeController.php
+++ /dev/null
@@ -1,27 +0,0 @@
-<?php
-
-namespace Drupal\comment\Controller;
-
-use Drupal\comment\CommentTypeInterface;
-use Drupal\Core\Controller\ControllerBase;
-use Drupal\Core\StringTranslation\TranslatableMarkup;
-
-/**
- * Returns responses for comment type routes.
- */
-class CommentTypeController extends ControllerBase {
-
-  /**
-   * Route title callback.
-   *
-   * @param \Drupal\comment\CommentTypeInterface $comment_type
-   *   The comment type entity.
-   *
-   * @return string|\Drupal\Core\StringTranslation\TranslatableMarkup|null
-   *   The comment type title.
-   */
-  public function commentTypeTitle(CommentTypeInterface $comment_type): string|TranslatableMarkup|null {
-    return $comment_type->label();
-  }
-
-}