If only speaking from personal experience, many games nowadays have an almost implicit requirement to search up a “before I play” guide or a “beginner recommendations”. If nothing else, many people want to Google “missables”, to ensure that they can fully experience a game.
What is your recommended game that requires nothing but the player to be in the moment and enjoy the experience?
Ghost Trick
Phoenix Wright (edit: as many people have said, yes sometimes you’ll need to look up a guide, but it is VERY easy to get spoiled so be careful looking up a specific character or for youtubers who spoil the case)
The MISSING: J.J. Macfield and the Island of Memories
Ib, Omori, Yume Nikki (all 3 of these games are kind of the same vein but still recommended)
YOU and ME and HER: A Love Story (I havent actually played this one but its interesting and Its hard to bring up without spoiling it)
Spark the Electric Jester (at least 2 and 3 if you just want a wtf reaction to the endings)