You can turn off, or at least adjust some, through your account dashboard. If you are in Chrome and logged in to your Google, simply click on your account icon

You can turn off, or at least adjust some, through your account dashboard. If you are in Chrome and logged in to your Google, simply click on your account icon in the top right and click My Account. There is an array of settings if you start diving into it regarding your privacy settings and how Google uses your information to customize your experience. Not sure if you can turn it completely off, but you can at least limit it to some point.