Not every person has seen every game being recommended or just mentioned on the internet. But they’ve likely seen every game, they played themselves, on the internet, except for pre-internet or analog games that they never looked up somehow.
If that’s what you’re looking for, that is an interesting question, but I’d assume that most answers here are just as incorrect as this one.
Why is Github forcing this unscientific religious propaganda on us? If Github doesn’t change this immediately, I will never ever delete my account! >:(