The European Union has decreed that Apple must share information with its rivals, Alphabet and Meta, also known as Google and Facebook. The sharing is supposed to produce "interoperability" per the EU's Digital Markets Act. This helps companies that rely on the App store to distribute their products. Apple has filed an appeal. I'm sure this is all very significant though I have nothing very profound to say about it now, except that it reminds me of the US debate about "net neutrality" a few years back.