Apparently Europe finally got Whatsapp to enable 3rd party chats making it easier to switch to more privacy friendly alternatives article However the only other app that currently works with it is “BirdyChat”??
Have anybody found any news about when serious alternatives will be integrated?
You’re correct, it is not a public API. In fact, just to see the specs, you need to be either an organization (or an indie developer) registered in the EU and have to sign a massive NDA just to get the documentation!