Google Added Some Documentation on How to Enable Web Stories on Google
https://developers.google.comA Web Story (previously known as AMP Stories, here is a link to today’s Web Story on tldrMarketing) is a visual storytelling format in Google Search results that immerses the user in a tap-through full-screen experience. Web Stories can also appear in Google Images, Discover, and the Google app. Currently, Web Stories on Google are only available in English in the US.