23 files declare their use of ConfigManagerInterface

AddItemToToolbar.php in core/modules/ckeditor5/src/Plugin/ConfigAction/AddItemToToolbar.php
AddModeration.php in core/modules/content_moderation/src/Plugin/ConfigAction/AddModeration.php
AddToAllBundles.php in core/modules/field/src/Plugin/ConfigAction/AddToAllBundles.php
BundleConfigImportValidate.php in core/lib/Drupal/Core/Entity/Event/BundleConfigImportValidate.php
ConfigActionManager.php in core/lib/Drupal/Core/Config/Action/ConfigActionManager.php
ConfigController.php in core/modules/config/src/Controller/ConfigController.php
ConfigDependencyDeleteFormTrait.php in core/lib/Drupal/Core/Config/Entity/ConfigDependencyDeleteFormTrait.php
ConfigEntityStorageTest.php in core/tests/Drupal/Tests/Core/Config/Entity/ConfigEntityStorageTest.php
ConfigImportSubscriber.php in core/modules/content_moderation/src/EventSubscriber/ConfigImportSubscriber.php
ConfigSingleImportForm.php in core/modules/config/src/Form/ConfigSingleImportForm.php
ConfigSnapshotSubscriber.php in core/lib/Drupal/Core/EventSubscriber/ConfigSnapshotSubscriber.php
ConfigSync.php in core/modules/config/src/Form/ConfigSync.php
EntityCreate.php in core/lib/Drupal/Core/Config/Action/Plugin/ConfigAction/EntityCreate.php
EntityMethod.php in core/lib/Drupal/Core/Config/Action/Plugin/ConfigAction/EntityMethod.php
EntityPermissionsForm.php in core/modules/user/src/Form/EntityPermissionsForm.php
EntityPermissionsFormTest.php in core/modules/user/tests/src/Unit/Form/EntityPermissionsFormTest.php
ExcludedModulesEventSubscriber.php in core/lib/Drupal/Core/EventSubscriber/ExcludedModulesEventSubscriber.php
LocaleConfigManager.php in core/modules/locale/src/LocaleConfigManager.php
ModulesUninstallConfirmForm.php in core/modules/system/src/Form/ModulesUninstallConfirmForm.php
PermissionsPerBundle.php in core/lib/Drupal/Core/Config/Action/Plugin/ConfigAction/PermissionsPerBundle.php
QueryFactory.php in core/lib/Drupal/Core/Config/Entity/Query/QueryFactory.php
system.post_update.php in core/modules/system/system.post_update.php
Post update functions for System.
ThemeInstaller.php in core/lib/Drupal/Core/Extension/ThemeInstaller.php

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