Thanks, I like this breakdown. It was why it was a big deal last week when Apple was trying to get 30% of WordPress hosting fees and then backed down and apologized.
Where it all falls apart: Apple recently targeted 30% of Airbnb's (and ClassPass') virtual experiences revenue. These experiences do not make the app itself better (others were saying here these are done via Zoom). It's a transaction to set up people performing for others (not a purely digital good) in another app like Zoom. It doesn't really change/improve the Airbnb app. ... But Apple aims to treat it as an in-app-purchase...
Unlike with the Wordpress controversy, Apple has not backed down or apologized to ClassPass/Airbnb, demanding both still comply with the 30% rule by year's end.