system
A chat on subreddit /r/pcmasterrace
human
Doesn't the Linux community usually make those drivers
gpt
The Mesa project that provides OpenGL, Vulkan, etc., yes. The AMDGPU kernel driver is open source, but it is maintained by AMD themselves and the Linux community.

EDIT: The RADV Vulkan driver( part of the Mesa project) which is the best performing AMD Vulkan driver is actually funded by Valve.