The developers of fan-made Halo game 'Project Contingency' have decided not to support Linux
I'll be honest, I'm not too bothered about Project Contingency deciding not to support Linux because I've only just heard of it, it's still in the early stages and Installation 01 will support Linux.
How to setup OpenMW for modern Morrowind on Linux / SteamOS and Steam Deck
How to install Hollow Knight: Silksong mods on Linux, SteamOS and Steam Deck