Forza Horizon 4, 4k Ultra, on Fedora 34 Linux, resizable bar enabled, FSR Ultra Quality enabled.

So last week I posted a video of Forza Horizon 4, running on Fedora 34 in Steam Play/proton, at 4k Ultra with resizable bar enabled. For reference, the 4k 60 ultra resizable bar video can be found here: This time, we now -also- have an FSR patch set (AMD Fidelity Super Resolution) which works alongside proton’s fullscreen hack. Proton’s fullscreeen hack is a modification to proton which allows displaying smaller or non-standard resolutions within your monitor’s default resolution without changing it. Essentially it’s capable of doing what FSR does -- scaling up smaller resolutions. However now that FSR has been released, that hack has been retro-fitted using FSR for it’s upscaling backend. Meaning yes -- FSR can be used on almost any game running in proton. There are a few limitations, for example some games which already have FSR or other scaling implementation may not work. So the way this works is -- the FSR resolutions are patched in alongside FSR for the