6 files declare their use of EntityTestWithBundle in Drupal 10

ContentTranslationModuleInstallTest.php in core/modules/content_translation/tests/src/Kernel/ContentTranslationModuleInstallTest.php

EntityAddUITest.php in core/modules/system/tests/src/Functional/Entity/EntityAddUITest.php

EntityBaseTest.php in core/tests/Drupal/KernelTests/Core/Entity/EntityBaseTest.php

EntityBundleConditionTest.php in core/tests/Drupal/KernelTests/Core/Entity/EntityBundleConditionTest.php

EntityBundleListCacheTest.php in core/tests/Drupal/FunctionalTests/Entity/EntityBundleListCacheTest.php

InternalEntitiesTest.php in core/modules/jsonapi/tests/src/Functional/InternalEntitiesTest.php