https://arstechnica.com/gaming/2023/11/steam-might-let-you-hide-those-embarrassing-games-in-your-profile-soon/

Steam has long sought to strike the right balance between convenience, community, and private refuge. Until recently, sharing your gaming history was either public, exclusive to your friends, or turned off entirely. A screenshot from a noted Steam watcher suggests that a "Mark as Private" option could be coming for individual games that you're not keen on anyone, including friends, knowing you've put some time into.

Posting on X (formerly Twitter), Pavel Djundik, creator of the Steam insight tool SteamDB, shows options on the three-dot menu to the right of a game, with the last being "Mark as Private." A tooltip on the option reads, "Mark this game as private and hide it from my friends." Djundik's example is Counter-Strike 2, which, perhaps in some circles, is a game worth hiding.