Facebook plans a major overhaul, testing full-screen video experiences akin to TikTok, aiming to retain users amid growing competition from rival social platforms.

Facebook plans a major overhaul, testing full-screen video experiences akin to TikTok, aiming to retain users amid growing competition from rival social platforms.

The social platform says it will test a video-first look for users when they open the app in select countries, potentially bringing it to the U.S. next year.