It remains to be seen whether Apple will comply with EU rules outside of the EU. If not, Epic isn't getting their way, because EU revenue alone isn't going to be enough.
If Apple is still anywhere in the final process, its entirely possible other people can make their own storefronts but Epic will not.
Of course, Apple can try to circumvent but that's a blatant violation of DMA and there will be serious retaliation. EU already has given a warning[1]. Perhaps it's good to remind that Apple could've been in a better position with all the USB-C situation if they didn't insult EU congressman with laughter[2]... I don't think Tim's going to repeat the same mistake.
[1] https://www.reuters.com/technology/exclusive-eus-vestager-wa... [2] https://www.cbc.ca/radio/asithappens/apple-adopting-usb-c-po...
Also, subscriptions are charged at 30% for the first year, which then drops to 15% for subsequent years.
When we sold software through resellers years before the App Store we often paid 40%-45%. We found it absurd at first too, but we learned that large businesses only bought from certain resellers or the resellers could sell into businesses we couldn’t reach (a sales staff in business or marketing to consumers). In some rare cases we negotiated to 30% so I don't find these fees out of the norm.
Now I wonder what if Google/Apple decided to decrease their cut to a more reasonable level, around 10~15%? App store/Play store fees are not their primary revenue stream so this must be a reasonable cost for them to mitigate this kind of legal risks, but they choose not to do so.