the most eye opening think I’ve ever experienced design-wise was adding a new note pop-up feature that always popped up at the top of your timeline when you were scrolling, that showed when new note...
There have been some efforts to counter people losing themselves in feeds, like Instagrams “Take a break” feature. https://www.pocket-lint.com/apps/news/instagram/159343-what-is-instagram-take-a-break-feature-how-it-works-turn-on-off/