I use MacOS, iOS, Linux and Windows, and only one of the above has never shown me ads. The only one of those which has never shown me ads is iOS, because I've

I use MacOS, iOS, Linux and Windows, and only one of the above has never shown me ads. The only one of those which has never shown me ads is iOS, because I've never interacted with it. With GNU/Linux unfortunately there was that one time when Ubuntu showed Amazon ads in the Unity Lens. There was a bit of backlash and they fixed it forthwith, but it did impart me with a certain amount of cynicism.