Netflix is finally beginning to hit the PC with 4K content, but you're going to be locked to using Windows 10, and more horribly - Microsoft's not-so-popular Edge browser.
It's a massive limitation, and unlike the source of this news - The Next Web, which report that it could be Microsoft made this move to "ensure battery efficiency", as not every person has a laptop with a 4K display. The problem is, the current limitation of Netflix resolution support is 1080p, with the next step being 4K.
Worse yet, you'll require Intel's next-gen Kaby Lake processor to play 4K content for now. Ridiculous. Absolutely ridiculous. Microsoft must have paid a considerable sum to Netflix for this stupid exclusive crap, and so did Intel. Microsoft's expensive new, super-awesome Surface Studio rocks a gorgeous 4500x3000 display... and thanks to it not rocking Intel's 7th-gen Kaby Lake architecture, 4K streams aren't going to work with Netflix.
What a wonderful world we live in.