Yes, but the open-source nerds haven't been able to write any proper 3D rendering library, such as Microsoft's DirectX(Direct3D).
OpenGL reminds me of something that belongs to the '90s. Thus why you won't ever get proper game support on any other platform than Windows.
Microsoft even wrote TWO frameworks (XNA being the 2nd), and OpenGL is still pretending the year is 1996.
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