APUs have come a long way since the initial ones. AMDs own are now actually decent in 1080p gaming. I built my wife a gaming pc and didn't buy a dedicated gpu, just an AMD APU and can play CS GO maxed out at decent fps.
What we have is still a CPU and a GPU. Separate. Discrete. The inclusion changed nothing about what kind of software we can write or problems we can solve. Back when APUs were still just a slide in a powerpoint deck, there was a lot of talk about how this could "change everything" because of the radically different type of compute you could do on a GPU.
The closest thing to this is the coin mining craze, but everyone is gravitating towards the fastest hardware for that. And that's not your APU.