We're interoperable, so you can be sovereign
Interoperability is the foundation of digital sovereignty; it’s the key ingredient in making sure the end-user stays in control, rather than the vendor. In reality, of course, most vendors want to be the one with the power. Vendors aim to lock their users in, and to build a proprietary walled garden as quickly as possible. This is why WhatsApp users can only message other WhatsApp users. Likewise, it’s Teams to Teams, Slack to Slack, Wire to Wire, Signal to Signal, Zoom to Zoom.