The whole problem with social media is the feed. Remove that feed and replace it with something that is not the mechanism to keep users captive and most of the issues with social media are solved.

One of the ways to achieve that is to make people at the center of app. The user chooses avatar from multiple avatars on main screen and view their updates. Once they have viewed someone's update they can go back do it for other, it becomes boring very fast and discourages app usage. No social media company is going to do this but something of this sort needs to happen.