The Linux team at Nvidia is actually full of awesome people, used to know some of them. They’re just often hamstrung by business objectives.

NVidia ships heaps of Linux stuff, mostly via their machine learning teams. For example they have their NVidia Jetson devices which all run Linux: https://www.nvidia.com/en-au/autonomous-machines/embedded-sy...

Perhaps it will come to RPi4 as well?

RPi4 has a different GPU than the older models. Someone else is already working on an official Vulkan driver for it.

I wonder whether this situation of reverse-enginnering GPU drivers is sustainable. GPUs on ARM SOCs tend to be quite different from each other and most vendors have no interest in collaborating with the linux community. On X86 at least we have Intel and AMD willing to invest in linux drivers.

IMHO it is just unethical to have to reverse engineer your hardware to program for it.