It's been a while, but I have to re-introduce myself.
As mentioned, I'm a guy from Austria. I grew up with computers (my first one was an Amiga 500, followed by a 486DX2-66 in 1992). Since then I worked with DOS/Windows. I was a gamer, so I had to stick with Windows, so I never had a close look to Linux. I tried sometimes, but never considered it as a Gamer-Desktop-Replacement.
But things change! Microsoft got out with Win10, where it is absolutley unpredictable what MS does with the collected data. Although I enjoyed the free Win10 upgrade, the rumors about what MS collects always bothered me.
So it was time again, to give Linux a try. I bought an old computer (Core2Quad 9400, 4GB RAM) fitted an appropriate graphics card to fit my 1440p resolution. I tried Kubuntu 15.04, Manjaro but I wasn't fully satisfied. So I went back to Linux Mint, which I tested successfully in 2012 (where I introduced myself).
I was surprised, because I missed nothing. Even under Windows I ran Open Source Software where I could (LibreOffice, KiCad, RawTherapee etc.), even Firefox and Thunderbird was used. The only open thing was gaming. And here Valve did something great. Out from my 30 games in steam, 12 are compatible with Linux.
So that was the big day, I will not forget: 09-20-2015, the day where I removed Windows and installed Linux on my gaming system (i5-2500k, GTX770). It was quite cool, everything (except the Soundblaster Z) ran out of the box. Gaming with Steam is nothing other than under Windows. Only the performance is a little bit lower and I don't have VSYNC. But that a quite small price, compared to the freedom you get.
Of course, I have to learn quite much, as Linux (although the GUI is quite similar) is a completly different OS than Windows. I have nearly 20 years expirience on Windows, but just a few months on Linux. Nobody shouldn't expect, that you can compensate this within a week.
09-20-2015 was a great day: I switched to Linux and left Windows behind...