Unfortunately, anytime I hear someone talk about privacy, I think that ship sailed about two decades ago. You only a handful of operating systems and device makers at this point. I think there's zero chance any of them have truly private anything anymore.
Discussion
It's a spectrum. I think of it like hygiene -- there are certain simply "wash your hands" type principles that can get people pretty far along the path to decent privacy...
There's security against mass "retail" surveillance, which is probably achievable for most people, and then there's security against *targeted* surveillance against you as an individual, which is a more difficult situation.
Yeah, I like that take. You don't want to leave yourself wide open to low-level attacks, but there's very little you can do to defend against governments or advanced hacker groups.
You protect yourself the best you reasonably can.