You can unhide games in Steam by navigating to View > Hidden Games, then right-click a game and select the Remove from Hidden options. Hidden games are placed in a special collection only accessible through the View menu.
How to See Hidden Games on Steam
How To Find Your Hidden Steam Games
Different Ways to How to Unhide Games in Steam
How to Unhide Games on Steam: 7 Easy Steps
How to Hide and Unhide Games in Your Steam Library! Working 2022
How to find Hidden Games on Steam, Unhide Games - BounceGeek
How to Hide/Unhide Games in Steam
How to View Hidden Games on Steam
How do i unhide hidden games on deck? : r/SteamDeck
Steam Deck - How To Find Hidden Games
How to unhide games on Xbox One?