I added the Free-To-Play Team Fortress 2 to my favorite games in the Steam library, and played the game.
After reinstalling steam, the game went missing from the library completely - it does show up in neither favorites nor recently played games.
All other games work perfectly fine. I am logging in to the correct account and did not mess around with Steam in any way.
I can still install/play the game by going to its store page, but that's cumbersome. Is there any way to fix this?