Vulkan-to-DirectX 12 translation tool used in Valve's Proton now supports AMD's FSR4 and Anti-Lag, while Nvidia's DLSS4 remains unsupported — FSR4 now also works on older GPUs, VKD3D-Proton v3.0 brings other performance improvements

https://www.tomshardware.com/video-games/pc-gaming/vulkan-to-directx-12-translation-tool-used-in-valves-proton-now-supports-amds-fsr4-and-anti-lag-while-nvidias-dlss4-remains-unsupported-fsr4-now-also-works-on-older-gpus-vkd3d-proton-v3-0-brings-other-performance-improvements