> I suspect they have much more information than what we tell them, and I mean raw data, not what's derived from collaborative filtering or other techniques. I wonder if our ISPs, streaming services, banks, visa, etc, share data. Maybe it's just the trackers all over the internet.

They absolutely do. You should download your FB data, if you have an account. It's basically a list of everywhere you've shopped/been/etc. 95% of it you likely didn't share intentionally. It's quite shocking.