If you have Google as a default search engine in Chrome, then every time you open a new tab, it is loaded from Google's servers with cookies. So Google knows how many times a day and when exactly you open a new tab.
This works even in Debian which usually cares about privacy. Google doesn't warn about this (maybe they have a clause in the Terms of Usage, I don't know).
You can see this yourself using Developer Tools on a new tab page.
By the way, adding a new search engine named, for example, "Gogol" instead of "Google" and using it by default fixes this problem. Or at least fixed two years ago.
If you have Google as a default search engine in Chrome, then every time you open a new tab, it is loaded from Google's servers with cookies. So Google knows how many times a day and when exactly you open a new tab.
This works even in Debian which usually cares about privacy. Google doesn't warn about this (maybe they have a clause in the Terms of Usage, I don't know).
You can see this yourself using Developer Tools on a new tab page.
By the way, adding a new search engine named, for example, "Gogol" instead of "Google" and using it by default fixes this problem. Or at least fixed two years ago.