The standard argument that a 30% is ok for video games but not ok for the App Store is that games are special and different. I don’t find it convincing. I think a better argument is that a 30% cut is wrong full stop, but going after phone app stores is a higher enforcement priority because the stakes are higher. An increasing portion of commerce is digital, and increasing portion is happening on phones. Apple will try to expand the coverage of the 30% cut until someone makes them stop. The only way they can keep growing as a 2 trillion dollar company is to take an increasing cut of the world’s economic activity.