So let's say you're pretty well set for browser privacy by using a browser like Firefox or Tor, then installing HTTPS Everywhere and other plug-ins, using NordVPN and so on, but then you visit YouTube or the Play store and are logged into your Google account. At that point, do all the privacy measures you've taken matter? I mean inasmuch that even if you've hidden yourself as well as possible, you are now associated with a particular Google account, at which point you might as well have handed your bio to whomever's interested. Can anyone confirm? And if so, how can I use YouTube and the Play store without this problem?