Actually this was possible already, and most of Facebook's primary features existed before Facebook. Facebook can really be described as the time wasting, addiction-inducing, feature-sets on top of standard social communication features, driven by their main goal of delivering and monetizing ads. Helping you communicate with your friends and family? That's just an ad vector.
Recently my friend group switched over to a non-facebook-owned messaging service, and the hardest part was breaking old habits. The facebook specific features? Messenger actually had fewer features to help us communicate and more features designed to distract us and make us mindlessly consume.