It might be enough to use many different messaging apps in parallel. This enabled competition and a smooth transition between them. For example, I tend to slowly move from WhatsApp to Telegram as more new groups I join are created in Telegram while old groups in WhatsApp tend to get abandoned. Also, I often access these groups through opera via their API and not the native apps. This is a natural development in a market where people use multiple apps in parallel: aggregators emerge and with that, the power shifts to them. That’s a good thing as it makes it easier to transition from one solution to the other.

What could be done legally to help this development is requiring services to offer open APIs to reduce the lock-in.