Update 1 (10/16/2020 @ 11:40 AM ET): Facebook is now rolling out the new tabbed news feed for some Android users. Scroll to the bottom for more information. The article as published on February 19, 2020, is preserved below.
Facebook has long been at the helm of social media. With over 2.5 billion monthly active users, which accounts for roughly a third of the world's population, it is huge in numbers. And as a company, they also own other apps and social networks such as Instagram and WhatsApp, both of which are also huge in their own right. Given this huge userbase, a big chunk of which are mobile users, it goes unmentioned that the company puts a lot of care to their Facebook app's experience, even though it's been often regarded as "bloated." Nonetheless, they do, and the app is now getting new features to make feed exploring more comfortable, as shown in the tweet below by reverse engineer Jane Manchun Wong.
The Facebook app is testing a new tabbed News Feed with options for sorting based on post visibility. Now, you'll be able to sort posts based on Most Recent, Most Relevant, and Already Seen. Most Recent sorts posts in chronological order, Most Relevant is the current default we all see, and Already Seen shows posts we've already seen appear in our news feed, possibly in a chronological mode. These new sorting options should be pretty useful for allowing us to sort our news feed however we want.
Keep in mind that this feature, as of the time of writing, is currently not live: it is just something Facebook is testing internally. Nonetheless, once it goes live once and for all, it will probably first come to users through A/B testing, like most Facebook features—including its recent UI/UX redesign—have rolled out for the past few years. If you don't have the Facebook app on your phone and want to try out this feature eventually, though, then it would be a good idea to pull ahead and download the app to your phone right now.
Update 1: Rolling Out
Months after the tabbed news feed was originally discovered, Facebook is now rolling out this feature to some users on Android. XDA Member Some_Random_Username informed us that he is seeing tabs for Home, Favorites, and Recent in Facebook for Android stable version 292.0.0.60.123.