Comment by 0xbadcafebee

My experience is using Linux as my primary desktop OS for 25 years, for gaming, 3D rendering, and web browsing. I'm also a programmer and systems engineer, and I've created Linux distributions, as well as contributed over a thousand packages and ports to other distros, and patched/backported drivers in the kernel. I'm not going to detail every single video driver issue I've run into, as I don't want to write a book just to prove to a random person on the internet that Linux does, in fact, have a history of issues with graphics cards and video subsystems. A simple Google search can provide more than enough examples.

But more than that, it's simple logic: hardware manufacturers often don't often release specs or proprietary firmware blobs, forcing kernel hackers to reverse engineer in order to support a device, which often is too difficult, not to mention there's only so many kernel hackers and a lot of devices and hw revisions. There's a famous YouTube video of the most famous kernel hacker telling Nvidia to go fuck itself for this very reason.