I started to play the game on a Windows PC and ran into some bugs regarding triggering or not-triggering of puzzle-relevant items which could be resolved by restarting the game. Did a short test running the game on the Steam Deck, so I cannot attest whether the game will startup for a fresh install. But for me it bworked out-of-the-box using manually set Proton-Experimental runtime. Game even runs on Ultra settings and looks nice but then can dip fps to around 12 fps in my tests, performance will be better when using high/medium or even low settings.