Unless that's changed for the worse, you are misremembering the CTF rules.

App marketplaces pay 0.50€ per install-year from zero.

App developers (except web distribution, perhaps) get 1M free app installs per year, regardless of marketplace.

Ahhh, thanks.

> One million free first annual installs. Membership in the Apple Developer Program includes one million first annual installs per year for free for apps distributed from the App Store and/or alternative marketplaces.

> Developers of alternative app marketplaces will pay the Core Technology Fee for every first annual install of their app marketplace, including installs that occur before one million.

https://developer.apple.com/support/core-technology-fee/