This article explains this new program for those (like me) who had no idea what a "mini app" was and why it matters: https://www.macrumors.com/2025/11/13/apple-announces-mini-ap...
tldr: it will let Apple charge a commission (although at 15%, it's half the normal 30% rate for the app store) on popular web app games embedded in to WeChat for the Chinese market