[listmaking]

Those are different settings:

- the settings for what data about your Google activity is retained are at https://myaccount.google.com/data-and-personalization — in particular, "Web & App Activity" at https://myactivity.google.com/myactivity (for new accounts, it defaults to all activity being deleted after 18 months).

- the setting for whether your Google activity is used for ad targeting is at https://adssettings.google.com (the checkbox under "Advanced", if you're signed in).

- For non-Google activity, the setting for turning off Google ad cookies on random ad-carrying websites is to block third-party cookies in your browser. For Chrome, it is at chrome://settings/cookies