I guess the document about Google is so big they have issues uploading it to the web server!

Install NetGuard and see by yourself, it's terrifying. For eg the stock camera of my essential phone is sending data to Facebook without my consent

For Chrome, there's the official whitepaper: https://www.google.com/chrome/privacy/whitepaper.html

I'd love to see independent verification that it is complete and truthful, of course.