The world can no longer trust American tech. If that sounds dramatic, take a step back and consider the facts.
The United States is a nation in the thrall of authoritarianism, owned and operated almost completely by a far-right doomsday cult intent on betraying every alliance, every contract, every promise
That right there is going to kill any chance of me getting any of my friends to use it. Which is unfortunate and a side effect of not having a centralized server.
But when you’re trying to get someone to start using your app, trying to convince them to at least open the app once a day to make it so it’s able to be open in the background is a pretty hard ask of a lot of people
You’re right in pointing out the problems with decentralized message synchronization, though I was only trying to point out the fact that no known technology is capable of real-time messaging unless both parties are online ;)