Re: GIMP is, or at least has been enough of a match for most of what PhotoShop did
Most Autodesk products run just fine on Linux. The standout exception is 3DS Max.
The big winner from the Win 10 fiasco will be Apple. The Typical Windows User has no idea Linux exists, and Office/CS/Autodesk are all available on OS X.
Linux basically does no advertising, so people only learn about it from people who already know about it.
Win 10 will be left with a rump of exceptionally clueless users, and those who have to use it for business reasons.