I created a google takeout and in that zip file I found some files containing a ton of data about me. It has logged every single page I visited while using the google search engine and chrome browser. It even logged every single time I opened an app on my old android phone. It even has VOICE RECORDINGS of me and a log of every time I used google assistant. This is just some of the data and I’m very sure there is even more data they have.
I take it you mean Douglas Leith who is the first result?
Yes. He is the one who did a lot of privacy tests/reports, and a lot of people intentionally misinterpreted the results, mostly in pro-Apple camp.