Longtime Valve developer focused on the company's Linux efforts tweeted out today about lower input latency. He explained, " Latest Proton Experimental contains input latency improvements, especially for VSynced games, or GPU-bound games running below 60FPS. The changes affect how the frames are timed at a pretty low level, so it'll need lots of testing to make sure there aren't subtle regressions. "
That's exciting to hear but will likely be some time before it's promoted out of experimental. Those wanting to grab the latest Proton Experimental code can find it via GitHub .
This week's Proton Experimental state also pulls in DXVK-NVAPI as the latest component too, uses DXVK's DXGI by default, a newer VKD3D-Proton snapshot, and other changes.