Only the software that directly competes with Apple own software. So for example Spotify was denied access to the special APIs for a while, browsers can't use t

Only the software that directly competes with Apple own software. So for example Spotify was denied access to the special APIs for a while, browsers can't use their own engine, Apple apps can bypass firewall rules but games with lootboxes are welcomed because they don't compete with Apple and a 30% cut gets in Apple's pockets.