The System Shock remake from Nightdive Studios was originally funded on Kickstarter, and after delays it was eventually released on May 30th, 2023 but two platforms have been missing - Linux and macOS.
Kinda shady considering this was a Kickstarter stretch goal.
Euro Truck Simulator 2 has a native Linux version but only the Windows version launched via Proton actually works on my Linux PC.
Usually that’s because Linux versions have been abandoned after Steam Machines flopped. Same is with Dying Light, iirc Borderlands 2 as well