Musk's questionable decisions aside, I don't see how X can succeed being an everything app a la WeChat. (Aren't they also planning to pivot to becoming a video app? What is the vision combining both?) You know what social media app that also supports sending payments, video submissions, had/has its own content channel of shows, even a knock-off of HQ Trivia? Facebook. And who ever used FB in its portal-like form? Besides the Feed, Events, Groups, and Marketplace, who bothers with the everything features? I question that the WeChat model is really applicable for U.S. markets anyway, as it really depends if food delivery, ridesharing, etc. other companies are willing to team up with an everything app platform-maker.

Google is plagued by product execution issues. Any attempt at such an app will just fill a larger plot in the Google Graveyard. Microsoft doesn't even do social- what do they have, LinkedIn? Yammer? The Xbox network? X faces an uncertain future. Funnily enough I think Uber would have been a contender back under Kalanick's reign, but they don't have the same juice they used to.