https://www.techradar.com/news/steam-play-now-lets-you-play-some-windows-games-on-linux

Valve has announced Steam Play, a service that allows users to play games that were once only available on Windows on machines running Linux.

Valve had recently teased this feature, and now, in a post on the Steam community forums, Valve representative Pierre-Loup Griffais has announced an update to Steam Play that allows Windows games to be played on Linux via a modified version of WINE, known as Proton.