I'm using Win 10 on a desktop and I don't see fat controls, maybe I've spent a bit more time than you have getting it set up how I want it?
Would you care to publish a step-by-step guide complete wirth screenshots on what you did?
I am sure there would be a lot of readers here who would be interested in it. I get the impression that a good number of people who comment here just can't be bothered fighting Nanny Redmond and revert to their comfort zone (W7???)
If someone would do this then I'd buy them a pint (or two).
Until then, I have actually a real life job to do and frankly W10 is something I'd avoid if possible unless there was a guide on how to... well, you know the rest.