Comment by digiown

I was intending that the alternate client should exist to function as an escape hatch. I fully expect most people will still use the default one, just like how people used the official reddit/telegram client when third party ones were available. The existence of an alternative constrains how much Facebook can enshittify the experience.

E2EE is about secure transport between the endpoints. What happens to the message after the endpoint is not something an app can feasibly enforce. Having control of the clients can at most do things like enforcing deletes, which IMO is not a good idea anyway.

> every second client was pretty much a spyware

Very few people will actually use one since the official app won't be outwardly too hostile, and those who do should be sufficiently discerning.