Apple's App Store, a major revenue generator, is facing challenges from new regulations in various countries. The European Union, South Korea, and the United States have all demanded changes, leading to a fragmented experience for users. Apple has made some concessions, but its control over the store and its 30% commission are being scrutinized. The company's compliance efforts have been met with skepticism, and it faces potential fines and legal battles as it navigates the new regulatory landscape.