Mesa 25.2.6 is the latest bug fix release available now for open source Linux graphics drivers, pulling in fresh updates for games and other assorted issues.
Mesa 25.2.1 was released on August 20th bringing some essential bug fixes for the current latest feature release of open source Linux graphics drivers.
For a while now Linux users with NVIDIA GPUs have been reporting performance issues with DirectX12 titles using VKD3D, but a fix may finally be coming.