Install Ghostery.
I was commenting on Youtube and made a mistake on my log on name..it corrected itself as a question “do you mean...?”
This is scary invasive stuff.
All of the internet is invasive. If you choose to be on it, don’t expect privacy. If you want to keep yourself “hidden”, don’t give your real info.
You can have a FB account, actually several of them. Just don’t sign up with your real info on it.
I have become “friends” with many a Conservative because of FB. The more info I have, the more informed I am.