Seeing your hidden games on Steam takes just a couple of clicks from within Steam's settings to change what games appear in your Steam Library.
Anybody know why the sale is saying I have hidden games when none of my settings are configured to hide games? : r/Steam
How to View Hidden Games on Steam
How To Unhide Games In Steam (2 Easy Steps) - WePC
How To Unhide Games In Steam (2 Easy Steps) - WePC
How to Remove or Hide a Game from Steam
How To See Hidden Games On Steam? - ElectronicsHub
How to View Hidden Games on Steam – TechCult, hide games from friends on steam
How To View Hidden Games On Steam, Online Courses, SIIT
Can people see my hidden games if i set this to friends only? : r/Steam