[rectang]

Yes, that is possible -- and I'm sure that other trackers are doing their best with fingerprinting, etc and that they manage a certain amount despite my having Privacy Badger and uBlock Origin enabled in my main browser.

However, IP based associations do not show up in the user history that Google allows me to see, and as far as I can tell Google does not change my experience based on it.

I'm still subject to some filter bubble effects because I only zero out my main browser every few days.