Well, real privacy don¡t exist in the same moment you goes online. Google controls half the internet and MS and Apple the rest, direct or indirect. Even the Dark web isn't so private as people think.

An advanced user can reduce the privacy holes, gutting Windows, leaving it in an OS as is, the same with Google products, but also only up to a certain limit so as not to turn navigation into pure text or get blocked in most the pages. For this reason, we must focus on which data deserves to be protected or hidden and which are of a purely technical aspect that ensure the proper functioning of the sites we visit.

I don't care that the page knows what country I live in, but if it has to be avoided that it knows my address, I don't care that it knows the OS I use and the exact resolution of my screen, since this helps the pages not to be out of order or download links take me to downloads for another OS.

This is all data that matches millions of other users and is not a privacy issue. These problems arise with data that identifies the user directly, such as email addresses, which are unique and perfectly traceable, personal photos published on the Internet, bank details in these very convenient mobile payment apps, posting on Fakebook until when are we going to go pee or when we go on a vacation trip (surely some of the 5637 followers are very interested when your house is empty)...

There is a lot that the user can do to have a certain privacy at the computer level, but the worst security hole is always the user themselves and the lack of common sense..