Has the commission confirmed that these changes "resolve Apple’s disagreements with the Commission" or is that just like... Apple's wishful thinking.

I definitely recall previous iterations where Apple announced changes to comply with legal requirements where the authorities ended up saying "this absolutely doesn't resolve the issue".

Yeah. Also, IANAL but even if the European Commission does think Apple's interpretation of the DMA is reasonable, Apple could still be sued by an affected company or person, and a judge might disagree, IIUC: https://bureaubrandeis.com/private-enforcement-of-the-dma-a-...