Interesting, I kinda figured that there was some funding by governments but not nearly enough. SE Linux I always assumed was maintained by Redhat, like many other Linux components.

That makes the Nvidia situation a little more interesting. I'd imagine other proprietary software uses GPL'd libraries, like Steam? Doesn't seem fair if only certain software is being targeted for violating the license. At the same time I'm annoyed how little Nvidia contributes back. It feels like AMD is creating open standards like Freesync while Nvidia won't let others play with their toys in the sandbox, like G-Sync.