I don't know how it is on Macs (probably worse), but on my Lenovo Y50 I've had a lot of issues getting my nVidia card to work properly. First I tried Arch Linux

I don't know how it is on Macs (probably worse), but on my Lenovo Y50 I've had a lot of issues getting my nVidia card to work properly. First I tried Arch Linux, which I had been using on my previous machine for about 2 years now, and no matter what I did I couldn't get my nVidia card to work properly, even with the nvidia-beta package from the AUR. So then I tried Ubuntu, thinking that would be the "easy" distro. It installed alright, but the nVidia card was still giving me trouble and the official Ubuntu nVidia packages weren't new enough (it's a GTX 860M). So I added a PPA with a newer version of the driver and that seemed to get it working at least, but I still had massive screen tearing issues, and for some reason the nVidia settings app had far fewer settings than the Windows version I have on the other partition, and it didn't even have an option to enable vsync, which should resolve the tearing. After trawling through mountains of nVidia documentation and forum posts, including, no joke, the EBNF for their config file, I still can't get the damn thing to work. I'd like to have a real shell and be able to play games without rebooting, but the polish on desktop Linux still isn't quite there yet. And yes, I know this particular problem isn't the fault of Linux or any of the other software in Ubuntu, but it's a problem with the ecosystem and it's one that's preventing me from using Linux as much as I'd like to right now.