I think they are rather isolated. At least I have a hard time finding cases.
Here is another one, but this guy was running a website for sharing pirated stuff, which I think is much easier to track without violating privacy laws.
I also have some Sim City game on my phone. It’s great for when you have a couple of minutes to waste waiting on a train or something. I have nothing against mobile games itself, but I wouldn’t consider that gaming.
As someone that used to be a somewhat competitive gamer back in the days, I don’t like being lumped in with people playing mobile games. We are not the same. Call me a gatekeeper, but my aunt playing candy crush just isn’t a “gamer” in my book.