Apple Intelligence and two other features won't be available in the European Union when they launch later in 2024, due to interoperability rules in the DMA.
Apple is stepping on its own tail. The correct way to implement such features is to provide API to integrate any AI with their device, not only ChatGPT. And as an example, they should provide their own completely optional app for this, which could be downloaded from the App Store. This app should not be part of iOS at all. So EU regulators cannot do anything with it or it will be harder for them to figure out ways to restrict it. And users will worry less about privacy.