10 classes are annotated with ViewsDisplay in Drupal 9

Attachment in core/modules/views/src/Plugin/views/display/Attachment.php

The plugin that handles an attachment display.

Block in core/modules/views/src/Plugin/views/display/Block.php

The plugin that handles a block.

DefaultDisplay in core/modules/views/src/Plugin/views/display/DefaultDisplay.php

A plugin to handle defaults on a view.

DisplayNoAreaTest in core/modules/views/tests/modules/views_test_data/src/Plugin/views/display/DisplayNoAreaTest.php

Defines a Display test plugin with areas disabled.

DisplayTest in core/modules/views/tests/modules/views_test_data/src/Plugin/views/display/DisplayTest.php

Defines a Display test plugin.

Embed in core/modules/views/src/Plugin/views/display/Embed.php

The plugin that handles an embed display.

EntityReference in core/modules/views/src/Plugin/views/display/EntityReference.php

The plugin that handles an EntityReference display.

Feed in core/modules/views/src/Plugin/views/display/Feed.php

The plugin that handles a feed, such as RSS or atom.

Page in core/modules/views/src/Plugin/views/display/Page.php

The plugin that handles a full page.

RestExport in core/modules/rest/src/Plugin/views/display/RestExport.php

The plugin that handles Data response callbacks for REST resources.