[aikinai]

There’s a setting (Web and App Activity) to let Google collect activity on Google properties to use for personalization features.

I’m pretty sure it does not track any activity on non-Google properties.

[ramraj07]

I'll believe with at best 70% confidence.

[RNCTX]

You’re more generous than me

[moffkalast]

Or they only let you turn off tracking for google products, because those track you internally anyway and it makes no difference, while there's no way to turn off 3rd party tracking...