Earlier quoted context omitted.
Why didn't the EU force the removal of those requirements? Apple will keep playing games to make alternative stores uncompetitive and keep away unwanted developers.
Because it's still Apple's platform. And they have a right to prevent apps that harm the integrity of the overall platform which is what notarisation is designed to prevent. Also companies have always charged a fee for using their SDKs. Even today Epic does this i.e. 12%.
It's not Apple's devices, though.