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.
The faces training was all of the filters. Every single time someone took a video or picture and used filters to add cute moe eyes, or make themselves look like a crab, it was being used to make whichever company was doing it have a better bottom line or to accelerate their facial recognition.