Proton

Proton is a platform to enable playing #Windows games on Linux. It is built into the Steam platform on Linux, thus easily available to anyone, from beginners to experts. What has really made this take off is the fact that the Steamdeck runs Linux under the hood and uses Proton for game compatibility.

ProtonDB is a site listing games’ compatibility level with Proton, and it provides hints on how to best run a given game.