For At Least One Game, Mesa's NVK Driver Can Outperform NVIDIA's Proprietary Driver

In at least one game running on Linux via Proton Experimental, the Mesa NVK open-source Vulkan driver paired with the latest Nouveau reverse-engineered kernel driver is delivering better performance than NVIDIA's proprietary Linux graphics driver...
https://www.phoronix.com/news/Nouveau-NVK-One-Win