AMD Brings FSR 4 to RDNA 3 GPUs via Proton Experimental
Valve has integrated the AMD FidelityFX Super Resolution (FSR) 4 dynamic link library (DLL) into its Proton Experimental branch, according to code analysis by industry analyst Brad Lynch. This development, identified in Steam database manifests dated June 22, 2026, suggests that Valve is preparing to enable advanced AI-driven upscaling for titles running on Linux-based systems, … Read more