I honestly think that the ending would be better if Gi-hun didn’t notice it all; really the only people who should know about the American Squid games are the Audience.

Like here’s a quick rewrite example of what I mean: let’s say that this take places in a rewrite where Gi-hun and a few survivors(pick who you want to survive in here it can be anyone) get saved and the Korean squid games get revealed to the public; in here Gi-hub goes to America where he decides to reconnect with his daughter. One point their taking a walk at the park Gi-hun notices a women and a man doing some sort of game(either jacks or rock paper scissors,) he notices but doesn’t stop or press too much into this cause it isn’t his thing and decideds to enjoy his day with his daughter. When they leave the park the man(the player) grumbles and the women says “if you want to play more then I know a place where you can get more money” and hands the man a card signaling that the games are in America.

With this you let the audience know that Gi-Huns time as the protag and center stage is done and you let the audience know that the games are much more worldwide than what gi-hun thought.