Apple-funded study on EU DMA: Devs didn't pass AppStore fee savings to EU users (appleinsider.com)

Of course they didn't, because they couldn't.

Apple introduced plenty of new fees for developers who wanted to opt-out, with a complex multi-tier system, while they continue to appeal the decision.

They intentionally maintain a very high uncertainty for developers on how the situation will evolve, to prevent them from taking actions...