The Long Dark, a very chilly survival game that's not really like any others recently had an upgrade. It's also a Steam Deck Verified title.
Writing in a short and sweet Steam announcement, the developer said: "You'll be happy to know that The Long Dark is Steam Deck verified! Access your Steam library on the go, and use Steam Deck to explore everything the Quiet Apocalypse has to offer. Plus, the Hinterland team has been hard at work on visual and performance improvements on Linux to make your experience on Steam Deck even better. "
For longer than I can remember, The Long Dark suffered some annoying visual bugs on Linux. It's to do with Unity and their OpenGL implementation, with distant textures flickering - something I've seen happen to a few other games. It was very distracting and testing it today on my desktop, the great news is that it has been entirely solved.
Looks like for Linux, they actually switched over to Vulkan!