FSR 4 Arrives on RDNA 3 GPUs via Valve’s Proton Experimental on Linux

TL;DR Summary
Valve's Proton Experimental adds support for AMD's FSR 4 on RDNA 3 GPUs (RX 7000 series) under Linux via VKD3D-Proton, delivering an early, experimental preview of the AI upscaler with performance/compatibility varying by title.
- AMD Reportedly Enables FSR 4 On RDNA 3 GPUs Through Valve Proton Experimental Wccftech
- Leaked FSR 4.1 INT8 Model Confirms Compatibility with RDNA 3.5 TechPowerUp
- AMD releases FSR 4.1 upscaling for older graphics cards The Verge
- "Hopefully, it also finds its way to Steam Deck" — Valve may have found a way to bring FSR4 to more players Windows Central
- Valve has added support for AMD FSR 4 for graphics cards. Radeon RX 7000 on Linux GameGPU
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