> The service you're describing is commoditized today

Payment, yes, that is effectively commoditized. But Stripe, Paypal or cryptocoins only solve the "collect and move money across the world" part, not the "deal with the BS around taxes and tariffs in an N-N matrix of countries for publishers and consumers".

As a publisher of a game or other piece of software, I either have to use one of the global storefronts (Apple's App Store, Google's Play Store, Steam, Epic, Microsoft Store) to abstract this problem away for me (and all of them but MS have a somewhat comparable revenue share), or I have to find publishers in each jurisdiction I want to sell and negotiate with them and have additional expenses and efforts in repatriating the income, or I have to go and create my own legal entity for each jurisdiction and deal with filing the proper taxes and other BS on my own. Oh and notably the latter case also applies to dealing with sanctions lists - can't imagine OFAC being happy when my, say, Swiss subsidiary has the sanctioned offspring of a Russian oligarch buy a game from them?

This regulatory moat of doing international business is what keeps revenue shares at ~30% across the global stores. It is extremely difficult to build a competitor for the messes I mentioned - otherwise, someone else would have stepped up long ago to capture this gigantic money spigot.