The problem isn't inherently that the drivers are closed source, it's that Nvidia is actively hostile towards the ecosystem. For instance Mesa added a generic b

The problem isn't inherently that the drivers are closed source, it's that Nvidia is actively hostile towards the ecosystem. For instance Mesa added a generic buffer management API (GBM) allowing compositors like Weston to be hardware accelerated using OpenGL. Nvidia could have followed suite and supported GBM but instead went their own route with EGLStreams. So now Wayland, XWayland and every single Wayland compositor has to implement Nvidia specific code to support their hardware.