But no, this doesn’t confirm Google is using engagement metrics in rankings.
Please visit Search Engine Land for the full article.
Search Engine Land: News & Info About SEO, PPC, SEM, Search Engines & Search Marketing https://searchengineland.com/patent-suggests-how-ctr-time-on-page-could-be-used-in-search-rankings-if-google-did-that-sort-of-thing-314281