If you were OOTL and confused af, here is a paragraph that makes it easier to understand:
The consequences of the full permanent injunction would stretch far beyond Epic’s own store and its game Fortnite. They would force Google to effectively open up its app store to competition for three whole years. Google would have to distribute other rival app stores within the Google Play store, too, give rivals access to the full catalog of Google Play apps, and it would be banned from a variety of anticompetitive practices including a requirement that apps use Google Play Billing. You can read a summary of the details here.