They’re not actually relinquishing any control. They’re just allowing subsidiary “app stores” to take a tiny cut while Apple still controls everything.
I’ve been an Apple fanboy for years, but less so these days. I can’t imagine that the EU won’t fine them for this, although it’s hard to imagine any fine that would make an impression on a $3 trillion company.
If my understanding of the DMA is correct, and I think it is given this blurb from the DMA website “Fines of up to 10% of the company’s total worldwide annual turnover, or up to 20% in the event of repeated infringements.” The fines will be colossal.