Irony: The EU argues that it is vital that consumer "choice" be protected such that there be competition, so therefore, it must force Apple to open its ecosystem. And yet, in relation to USB-C, the EU argues that Choice must be stopped, so that there can be no competition in the area of charging standards.
But these were largely for two different purposes. One for "standardization" reasons (sort of like NACS in North America for electric vehicles) and the other for competition/choice reasons.