I think that Google Chrome was always about ads. The browser has an auto-completion algorithm that sends users to Google Search to click on well-disguised ads on the way to their destinations rather than sending users directly to URLs.
(Until recently, Firefox would send people directly to URLs instead of search. You have to enable the two separate boxes in Firefox to make that work now -- ctrl-l for URLs and ctrl-k for search.)
Chrome has a few serious dark patterns if you look closely. Also watch out for Google's current attempts to get rid of URLs, because it's probably motivated by getting people to become more dependent on search to click on ads (as well as hiding from people that they are visiting AMP "caches" instead of people's real (HTML) websites).