Like the $99/year they already charge all devs in addition to the 30% cut of all purchases?It will be interesting to see what's next. Will the authorities determine that 27% per transactions is too much? Based on what? If they do, will Apple start charging for hosting, downloads, app review, use of the development tools, etc. to get the rest of their fees?
Yes, the Fortnite's of the world get a steal for hosting their GB's of downloads, but for most apps you are talking about pennies on the dollar in terms of hosting a 10MB indie weather app that gets 10k downloads a month. App review is a joke, we've had multiple rejections for having a "Redeem code" button which links to the Apple sanctioned SDK to show the App Store redeem code sheet. Multiple, day wasting rejections. And that is the simple stuff - we spend weeks of time getting App Review to figure out how to use Sign In with Apple - they try to sign in with 2 factor disabled, our error message explains this, but they reject us anyways.
Charging for Xcode would be nice because it would incentivize everyone else to spend 6 months to build a much better tool since it can now be profitable to build dev tools for iOS.