Historically, drivers were often not available at all, at least not ones that actually exposed the real power of the hardware - and performance is usually lower.
See this set of recent benchmarks for instance, which show Linux performance lagging behind W10 by 15-25%.
https://www.phoronix.com/scan.php?page=article&item=radeon-w...
//slightly salty
And Intel? HA! HAHAHAHAHAHAHAHAHAHAHAA
One word: gma500 ... welcome to hell!
OpenGL performance. NVidia tends to be far more performant than AMD on OpenGL games.
AMD has put more work into Vulkan, but a lot of games on Linux are still on OpenGL. See the CEMU community for details: https://www.reddit.com/r/cemu/comments/7nehtz/cemu_1113_amd_...
I don't dare update my display drivers unless I have 3 days without a deliverable because of the disaster it usually is.
Usually (yes, more than 50% of the times) it will break my displays (fail to detect both monitors, switch to some weird resolution etc), and always it will break CUDA/CUDNN so I have hours of work making that work again.
I have a completely standard setup: Ubuntu 16.04 LTS, NVidia GPU, Intel CPU.
(I've been using Linux since Slackware 0.9, so yes I do know how to configure things. I'm sick of it not getting better since then).