Using categories and tags
The Web Stories WordPress plugin provides two taxonomies for organizing your content in the WordPress admin: categories and tags. To add Categories and Tags to your stories, open the Web Stories editor and navigate to the Document tab, where you can find a dedicated Taxonomies panel.
You can also assign and view taxonomies at Stories > All Stories:
Note that adding a category or tag to a story does not change the story's URL unless you are using a custom configuration or another plugin that adds the taxonomy to the URL.