I spotted various graphical issues too, like your character randomly being stretched across the screen and at one point it completely froze. With MangoHUD enabled, it would instantly crash. However, it's not exactly very stable right now.

Testing out both, I can confirm on Desktop and Steam Deck the Resident Evil 4 Chainsaw Demo does seem to load up and work with Proton Hotfix, which on Steam Deck is now set as the default but you need to do that manually on Desktop in the Properties -> Compatibility menu. I covered how to do that and what else was in SteamOS 3.4.6 preview in my previous article and video. For Steam Deck players though, Griffais also clarified you will need to opt into the Preview update. On Desktop Linux, simply selecting Proton Hotfix should be all you need as Griffais mentioned on Twitter.

Valve developer Pierre-Loup Griffais mentioned that they've updated Proton Hotfix, which should allow the new Resident Evil 4 Chainsaw Demo of the remake to run on Linux and Steam Deck.

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