There is nothing _but_ their platform- from the hardware, to OS, to app store, they're arguing that their platform encompasses an entire vertically-integrated business model. Microsoft got nailed for shipping their web browser with their OS (which users could easily replace), but it's fine for Apple to control all software a user can install? Take a monopoly and call it a platform, and it's fine? No. I have little love for Epic, but I'm glad somebody has the money to try to buy some law that will ultimately result in users having more control over the technology they depend on.