Hey OP. I've used Linux since 2005 and, as someone who works on all 3 OSes, I'd recommend you stick to Windows for your gaming PC.
1.) New games are released on Windows, not Linux or OS X.
2.) If you're building a PC for gaming, you don't want to fix bugs with the OS. I've spent countless afternoons solving small issues with Linux that OS X and Windows never had (like "Sound goes off after installing Netflix-Desktop" or "Chrome on LInux can't run Canva" etc).
3.) Linux is easier to use today than it was back in 2005 but, still, doing basic stuff like connecting it to a projector isn't as easy as on OS X or Windows.
In total, if you want something for Media or gaming, avoid Linux. If you plan on learning code, pick up linux.