There's every reason in the world to be brand agnostic when it comes to OSs. Linux drives the internet. It's in everything you do, all over the world. Ignore it at your peril. Windows machines drive business, and if you're in business, you'll learn to get around them. Macs are still in half the art departments in the world, and in half the world's pockets and bookbags via iPhones and iPads, which aren't going away any time soon. Familiarize yourself with them all, there's no reason not to.
Parole sante da: /r/buildapc