Half-Life and Portal writer Erik Wolpaw has detailed how his team has been using Generative AI for research and development at Valve.

Valve has responded to New York Attorney General Letitia James' lawsuit against the firm, stating it does not believe that lootboxes in its Counter-Strike 2, Dota 2, and Team Fortress 2 games unlawfully encourage minors to gamble, adding it was "disappointed" to see the action go ahead despite efforts to "educate" the NYAG about virtual items since "early 2023."

The Performing Right Society (PRS) has "commenced legal proceedings" against Steam owner Valve over the use of its members' works on Steam "without permission."
This won't hold up, it's the game developers that licensed the music to use in their games with Steam being the distributor of those games. By that logic they would have to go after Nintendo, Sony and Xbox for also doing the same thing.