Zocom, contrary to what you have said (using Windows 10 right now). So far I love everything including the new edge browser. I think its better then windows vista, 7, 8, and 8.1. Yes, it does take a bit to get used to to but everything including the design is pretty solid IMO. That said, I have an Nvdia Graphics Card in my laptop I am using right now and I havent installed any new drivers for it and it works like a charm, pretty sure it is only conflicted with some users.
The 3D edgy shadowing I dont see anywhere on the OS. I see transparentcy and flat minimal design which is what 2013-2015 has all been about basically.
For those unsure about whether to upgrade I urge you to give it a shot, I think you will find that for once Microsoft has actually hit it on the nail.. I will be installing the BFME games later today to test it out. I completely bootcamped my mac just to test windows 10 out and i think i am actually gonna keep it.