Valve released an update for Proton Experimental for February 27th, their testing ground for getting more Windows games running on Linux / SteamOS systems.
Lutris is an all-in-one open source game manager for launching games from various stores on Linux and emulators too - with multiple new versions released.
Heroic Games Launcher is one of the best ways to run games from Epic Games Store, GOG and more on Linux / SteamOS - with a new v2.20.0 bug-fix release out now.
The ace Luxtorpeda project has expanded, and now it makes it real easy to install the popular MGSHDFix pack for various Metal Gear games on Linux / Steam Deck.
Widelands is a free and open source Settlers-like strategy game, and their developers appear to be setting a firm stance against any AI generated contributions.
The first release of 0 A.D. that doesn't have an "Alpha" label attached, as the free and open source RTS has grown up with their faster release schedule.