Making them open to contributions was the first step, but ok I won't engage in this petty tribalism.

The topic was about nvidia's closed source drives.

Valve couldn't do the same for pascal GPUs. Nobody but nvidia has the reclocking firmware, so even the reverse engineered nouveau NVK drivers are stuck at boot clock speeds.

AMD did nothing to make their drivers better, Vale did.

That's literally the point of open source though, both AMD and Intel rely on open source drivers, so anybody can fix a flaw they encounter without having to rely on the company to "consider allocating resources towards a fix for legacy hardware"