Has that happened with Android where sideloading is already possible? Are Meta’s apps only available through their own App Store on Android? Nope, you’re worrying about something isn’t going to happen. And if it did, it would hurt Meta more than anyone else, because most people aren’t willing to go outside of the most convenient store to get it. Not to mention, so what if they did move out of the App Store? What, they’re going to take your data and sell it for profit? Oh wait… Which, of course, brings up another point that’s already been made several times: people put so much trust in the App Store that they just assume they’re protected from scum like Facebook.