It's more complicated (and arguably worse) than that. Because Apple provides no way to do a trial of a game (without subscription pricing) some games will have a free tier with ads and an IAP to remove ads. These wouldn't show up under "paid apps" even though they technically qualify.
If you look at what App Store business models Apple makes easy and which ones require jumping through hoops it's pretty clear that they want you to fill your app with IAP or use a subscription model. One time purchase software is possible, but is treated as a second class citizen (no paid upgrades, no demos/trials).
It's more complicated (and arguably worse) than that. Because Apple provides no way to do a trial of a game (without subscription pricing) some games will have a free tier with ads and an IAP to remove ads. These wouldn't show up under "paid apps" even though they technically qualify.
If you look at what App Store business models Apple makes easy and which ones require jumping through hoops it's pretty clear that they want you to fill your app with IAP or use a subscription model. One time purchase software is possible, but is treated as a second class citizen (no paid upgrades, no demos/trials).