It's all but certain that the App store will be opened up to the degree the DMA demands, when it demands it. The act will only fully come into force next year

It's all but certain that the App store will be opened up to the degree the DMA demands, when it demands it. The act will only fully come into force next year and until then nothing needs to be done (besides measures like reporting users to determine who is even affected). I'm sure the Apple PR team is still debating whether they hide the changes in a font size 1 footnote or whether this will be a "bold decision taken by Apple". And the jury is yet out how much malicious compliance, that will result in a second round of legislative action and some court cases, they will use. But rest assured, something is going to happen.