i use chromeplus
, a tweaked version of chrome, which adds a few features, and takes some away.
one of the things it removes is user behaviour tracking.
Chrome tracks some events such as search engine change, dev tool open, browser update, bookmark creation, browser exit, options change, ClientID and timestamps, theme installation and etc.
personally, i'm not bothered by this, and it isn't the reason that i use chromeplus at all - chromium is an open-source project, so all the program code is right out there available for inspection by those who like doing that sort of thing, so i would be surprised if the developers put in anything really sneaky.