Hi Hogo
1. Go into your Google Account
2. Click on "Privacy & personalisation"
3. Click on "Web & App Activity"
4. Turn "Web & App Activity" Off by clicking on it
You shouldn't see that pop up anymore and if you do you will need to clear your browsing data by
1. Clicking on the three dots
2. Click "More Tools" then "Clear Browsing Data"
3. Make sure the Time range is selected to "All Time" and make sure "Browsing History" is selected then click "Clear data"
I hope this helps :)