The current status of German regulators against apple can be found here. Specifically, the announcement of a preliminary assessment being sent to Apple in regards to the ATT issue is here.Germany is the one complaining that Apple does have to ask permission to do the thing that Apple doesn't do.
Some quotes from the latter:
Personalised advertising is also of great commercial significance for other companies wishing to offer free apps, some of which compete with Apple’s own services, in the App Store. This applies in particular to the many providers which – in contrast to Apple, for example – do not themselves have a wealth of broad and deep user data to draw on. However, the ATTF makes it far more difficult for competing app publishers to access the user data relevant for advertising.
Apple’s ATTF defines “tracking” in a way that only covers data processing for advertising purposes across companies. However, based on the findings so far, the strict ATTF rules do not cover Apple’s own practice of combining user data across its ecosystem – from its App Store, Apple ID and connected devices – and using them for advertising purposes.
IMHO these concerns reflect exactly what I have been posting about: the regulators are taking issues in how Apple defined the ATT rules and how the rules disproportionately affect especially smaller third-party providers.