38 files declare their use of SectionStorageInterface

AddBlockForm.php in core/modules/layout_builder/src/Form/AddBlockForm.php
AddSectionController.php in core/modules/layout_builder/src/Controller/AddSectionController.php
ChooseBlockController.php in core/modules/layout_builder/src/Controller/ChooseBlockController.php
ChooseSectionController.php in core/modules/layout_builder/src/Controller/ChooseSectionController.php
ConfigureBlockFormBase.php in core/modules/layout_builder/src/Form/ConfigureBlockFormBase.php
ConfigureSectionForm.php in core/modules/layout_builder/src/Form/ConfigureSectionForm.php
DefaultsEntityForm.php in core/modules/layout_builder/src/Form/DefaultsEntityForm.php
DiscardLayoutChangesForm.php in core/modules/layout_builder/src/Form/DiscardLayoutChangesForm.php
LayoutBuilder.php in core/modules/layout_builder/src/Element/LayoutBuilder.php
LayoutBuilderAccessCheck.php in core/modules/layout_builder/src/Access/LayoutBuilderAccessCheck.php
LayoutBuilderContextTrait.php in core/modules/layout_builder/src/Context/LayoutBuilderContextTrait.php
LayoutBuilderController.php in core/modules/layout_builder/src/Controller/LayoutBuilderController.php
LayoutBuilderDisableForm.php in core/modules/layout_builder/src/Form/LayoutBuilderDisableForm.php
LayoutBuilderEntityFormTrait.php in core/modules/layout_builder/src/Form/LayoutBuilderEntityFormTrait.php
LayoutBuilderEntityViewDisplayForm.php in core/modules/layout_builder/src/Form/LayoutBuilderEntityViewDisplayForm.php
LayoutBuilderRoutesTest.php in core/modules/layout_builder/tests/src/Unit/LayoutBuilderRoutesTest.php
LayoutEntityHelperTraitTest.php in core/modules/layout_builder/tests/src/Kernel/LayoutEntityHelperTraitTest.php
LayoutForm.php in core/modules/navigation/src/Form/LayoutForm.php
LayoutRebuildConfirmFormBase.php in core/modules/layout_builder/src/Form/LayoutRebuildConfirmFormBase.php
LayoutRebuildTrait.php in core/modules/layout_builder/src/Controller/LayoutRebuildTrait.php
LayoutSectionStorageParamConverterTest.php in core/modules/layout_builder/tests/src/Unit/LayoutSectionStorageParamConverterTest.php
LayoutTempstoreRepositoryTest.php in core/modules/layout_builder/tests/src/Unit/LayoutTempstoreRepositoryTest.php
LayoutTempstoreRouteEnhancer.php in core/modules/layout_builder/src/Routing/LayoutTempstoreRouteEnhancer.php
LayoutTempstoreRouteEnhancerTest.php in core/modules/layout_builder/tests/src/Unit/LayoutTempstoreRouteEnhancerTest.php
MoveBlockController.php in core/modules/layout_builder/src/Controller/MoveBlockController.php
MoveBlockForm.php in core/modules/layout_builder/src/Form/MoveBlockForm.php
NavigationSectionStorage.php in core/modules/navigation/src/Plugin/SectionStorage/NavigationSectionStorage.php
OverridesEntityForm.php in core/modules/layout_builder/src/Form/OverridesEntityForm.php
PrepareLayoutEvent.php in core/modules/layout_builder/src/Event/PrepareLayoutEvent.php
RemoveBlockForm.php in core/modules/layout_builder/src/Form/RemoveBlockForm.php
RemoveSectionForm.php in core/modules/layout_builder/src/Form/RemoveSectionForm.php
RevertOverridesForm.php in core/modules/layout_builder/src/Form/RevertOverridesForm.php
SectionStorageBase.php in core/modules/layout_builder/src/Plugin/SectionStorage/SectionStorageBase.php
SectionStorageManager.php in core/modules/layout_builder/src/SectionStorage/SectionStorageManager.php
SectionStorageManagerTest.php in core/modules/layout_builder/tests/src/Unit/SectionStorageManagerTest.php
SimpleConfigSectionStorage.php in core/modules/layout_builder/tests/modules/layout_builder_test/src/Plugin/SectionStorage/SimpleConfigSectionStorage.php
UpdateBlockForm.php in core/modules/layout_builder/src/Form/UpdateBlockForm.php
WorkspaceSafeFormTrait.php in core/modules/layout_builder/src/Form/WorkspaceSafeFormTrait.php

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