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.
Friends don’t let friends use Google and meta. show those you care about what you have discovered. don’t lecture them just make them aware, share your findings.
Also for a good read on Google and Meta, check out Jedi Blue. It’s a plan that FB and Google got sued for, for manipulating ad auction timings in favor of FB on Google in exchange for FB to promise to not open a competing ad service plans. They also gave FB access to every google device with Facebook (preinstalled esp) on it. The name Jedi Blue is a reference to the Jedi mind trick, assholes.