https://www.techradar.com/news/youtube-is-trialing-an-explore-tab-for-its-mobile-app

If you’ve ever found yourself stuck in a YouTube rabbit-hole, spending hours watching consecutive and vaguely-related videos, then this new feature will probably only make things worse.

Announced on YouTube’s own Creator Insider channel by Tom Leung, the video platform's director of product management, the Explore tab will allow mobile users to “broaden their horizons” when it comes to discovering new videos.