Somewhere at the end of last century, start of this one. I personally gave up on playing games on non dedicated hardware. One of the main reason I did that, was that it was becoming clear that games, was shipped with something that looked a lot like a root kit or a virus, and if you didn't want that on you computer, you couldn't play games on it.

So for me, I went with a console for games, but a dedicated PC works as well. But from my point of view, a PC with games on it, that is security hazard, and should never run anything you want to keep private.