Looking at my dashboard now I can see data on language, browser, mobile model, referral, etc. I think some are just not present in the mobile version of analytics, but I can't see what data this would not be collecting.

> However a lot of GA's stalking behaviour relies on having cookies on a specific Google-controlled domain

This also reminds me that this simple technique can bypass 3rd party cookies rules.

> author's nefarious goal.

You clearly misunderstood my goal.