Which is fine because there is ample competition on Windows and MS does very little to hamper it (as far as the DMA is concerned). Apple would also be allowed

Which is fine because there is ample competition on Windows and MS does very little to hamper it (as far as the DMA is concerned). Apple would also be allowed to charge whatever they want in the app store if there were actual competition on the platform. Since there isn't they have to play by the rules.