According to Google, 100,000 new Web Stories are added to the search index every day. The report contains information on how Web Stories is evolving as a content format, as well as five insights into which types of content are performing best. Lifestyle content has the highest engagement of any vertical, especially when it includes aspirational imagery and helpful how-to information. According to Google, users on Discover watch an average of 1.7 Stories for every Story they open. According to the company, this varies by demographic and depends on the type of story being featured.
Source: Google Web Creators