Anecdotally, I was connected to a number of people on the Ads team and years ago, the upper ups in the G machine were already extremely nervous of Amazon's internal ads system.
Google has been regularly losing marketshare to Amazon because people perform searches for products directly there when previously it was done through google-search.
Google has been regularly losing marketshare to Amazon because people perform searches for products directly there when previously it was done through google-search.