Yeah sure, I understand all that, indeed it's pretty much exactly what I wrote. You are simply taking an expansive definition of E2EE where I am using a narrow one. As far as we know, Meta is indeed sending its messages in an encrypted state, end to end, so technically it makes the grade as E2EE. That debate is kinda boring, I was simply trying to point out that this case study illustrates the importance of FOSS. And since you are downvoting me, that's all I have to say here.