"Hopefully, it also finds its way to Steam Deck" — Valve may have found a way to bring FSR4 to more players

G-Man character from Half-Life holds a Steam Machine box PC.

Some people, myself included until I saw this news, may not have known that AMD seemingly revealed FSR4 for older Radeon graphics cards last month. Now, just a month later, it appears Valve appears to be adding a version of AMD's FSR4 technology to Steam and Proton, which could theoretically allow Steam Machine and potentially Steam Deck users to effectively upgrade FSR3-supported games to FSR4.

For those unfamiliar, FSR is AMD's answer to Nvidia's DLSS. It's an upscaling technology that allows games to be rendered at a lower resolution, such as 720p, before being upscaled to a higher resolution like 1080p. The goal is to deliver a sharper image while reducing the workload on the GPU.