What I’m looking for is an answer from you as it relates to your specific business, not speculation from an advocacy org that can gin up any hypothetical numbers they want.

I asked in the start of the thread: how does it impact you, or your customers?

Right. So I don't know the costs of the hoops we need to jump through for our app to be granted a place on the app store. I'm not the guy who does the spreadsheets :). I do know that we've spent considerable time to make changes to pass app store review.

For example, our platform requires a subscription, but we can't link to the page where you subscribe anywhere. That means that if our FAQ page links to the subscribe page, and we have a link to the FAQ anywhere, we have to block that from happening. This isn't just extra work (to prevent users from ending up on that subscription page), it actually prevents us from offering users a way to subscribe or even change their subscription from within the app. This directly hurts our business model (subscriptions) and UX (users have to change their subscription by manually visiting our site in a browser).

All of this work means we either have to charge the user extra money (increased costs for consumers) or do less with the money we have (decreased value for the consumers).

I know this doesn't fully answer your question, but I hope it sheds a bit of light on what these extra costs are and how consumers end up paying for it.