After having worked at Google, it is the only company I actually do trust with my data. (But I am also ok with them using it to customize my experience, and even target ads) Their internal privacy controls are extensive. As a human, it is nearly impossible to access someone's data, even when debugging code/ML models/etc. And when you do need to, it requires exhaustive oversight/approval, and _everything_ is audited.
And what about "External privacy controls"?
I think that even fb devs can say such thing but...