It's not exactly dual GPU, just the Intel CPU has integrated graphics as usual. I'm not surprised if you don't have that, but it has to be the most common desktop setup, and quite common on high-end laptops. Was giving black screen after wake. Probably a solution exists somewhere, but even if I found it, the fact that this was broken out of the box and didn't have a clear fix was already reason enough not to trust it.
The GUI layout of Cinnamon vs KDE vs w/e seems like the main thing people argue about, but it doesn't matter compared to this. Anyone who even knows what an OS is enough to go install Linux will figure out how to use whatever GUI you give them, provided it works. The bar needs to be at making sure stuff isn't straight up broken.