At a certain point, it doesn't matter in a practical aspect. It's like trying to figure out who gave you syphilis. You already got it. You need to deal with that first before caring about the "from who". Once the encrypted data is sold off, it's passed around more than a cheap hooker with VD.

Encryption is just the sedative they give you before they do execution by lethal injection. There should be no data collection, by anyone. Don't pretend that "Oh, we encrypt your data that we take from you, for your benefit. Because we care."

They all need to stop collecting data and selling it off. FAANG and more. All of them. I'm fine with collecting anonymous view count/length of programs. That technically can benefit the consumer since it helps justify producers on what shows/movies to fund. Beyond that, there's no reason a single bit of voice data or transcript should go over the internet. No searches or anything IDing at all. No matter how secret squirrel they go about it.