Web Stories Now Support Video Caching For Better Performancehttps://blog.amp.dev
Google now provides support for video caching to all Web Stories. For most creators your favorite creation tool will likely handle this added performance boost. If you are publishing your own Stories you can opt-in to the Google Cache by following the steps below.
If you opt in, Google will try to serve videos from the Google cache before falling back to your site’s hosting, potentially reducing your video hosting costs by up to 99%.
amp-video with the attribute