16 files declare their use of SectionComponent in Drupal 10

AddBlockForm.php in core/modules/layout_builder/src/Form/AddBlockForm.php

BlockComponentRenderArrayTest.php in core/modules/layout_builder/tests/src/Unit/BlockComponentRenderArrayTest.php

ConfigureBlockFormBase.php in core/modules/layout_builder/src/Form/ConfigureBlockFormBase.php

DefaultsSectionStorageTest.php in core/modules/layout_builder/tests/src/Kernel/DefaultsSectionStorageTest.php

LayoutBuilderEntityViewDisplay.php in core/modules/layout_builder/src/Entity/LayoutBuilderEntityViewDisplay.php

LayoutEntityHelperTraitTest.php in core/modules/layout_builder/tests/src/Unit/LayoutEntityHelperTraitTest.php

LayoutSectionTest.php in core/modules/layout_builder/tests/src/Functional/LayoutSectionTest.php

OverridesSectionStorageTest.php in core/modules/layout_builder/tests/src/Kernel/OverridesSectionStorageTest.php

SectionComponentBuildRenderArrayEvent.php in core/modules/layout_builder/src/Event/SectionComponentBuildRenderArrayEvent.php

SectionComponentTest.php in core/modules/layout_builder/tests/src/Unit/SectionComponentTest.php

SectionListTestBase.php in core/modules/layout_builder/tests/src/Kernel/SectionListTestBase.php

SectionRenderTest.php in core/modules/layout_builder/tests/src/Unit/SectionRenderTest.php

SectionTest.php in core/modules/layout_builder/tests/src/Unit/SectionTest.php

TestPrepareLayout.php in core/modules/layout_builder/tests/modules/layout_builder_element_test/src/EventSubscriber/TestPrepareLayout.php

TestStateBasedSectionStorage.php in core/modules/layout_builder/tests/modules/layout_builder_test/src/Plugin/SectionStorage/TestStateBasedSectionStorage.php

TranslatableFieldTest.php in core/modules/layout_builder/tests/src/Kernel/TranslatableFieldTest.php