https://techcrunch.com/2020/02/18/facebook-tabbed-news-feed-seen/

Facebook may make it easier to escape its ranking algorithm and explore the News Feed in different formats. Facebook has internally prototyped a tabbed version of the News Feed for mobile that includes that the standard Most Relevant feed, the existing Most Recent feed of reverse chronological posts that was previously buried as a sidebar bookmark, and an Already Seen feed of posts you’ve previously viewed feed that historically was only available on desktop via the largely unknown URL facebook.com/seen

The tabbed feed is currently unlaunched, but If Facebook officially rolls it, it could make the social network feel more dynamic and alive since it’d be easier to access Most Recent to view what’s happening in real time. It could also help users track down an important post they lost that they might want to learn from or comment on. The tabbed interface would be the biggest change to News Feed since 2013 when Facebook announced but later scrapped the launch of a multi-feed with side bar options for just exploring Music, Photos, Close Friends, and more.