@DarknessRen3 No. They're superficially similar being about deadly games, but they're ultimately different. Squid Game is more grounded while AiB is more sci-fi. They're not like, say, All of Us are Dead and Train to Busan, which have zombies in common. And keep in mind the setting. One is set in Korea while other is in Japan. The likes of The Walking Dead and The Last of Us could work together because both are set in USA, but TWD and AOUAD couldn't. Not saying you couldn't do it, it'd be fun to see Gi-hun in AIB, but you need to put extra work since both vibes and settings are vastly different.
Also you haven't even properly started your actual Alice in Borderland book, please don't too eagerly jump into crossover ideas at least until you finished your already written books.