That would be a disaster for developers. Right now the App Store will distribute as many terabytes of your apps as you want, for free, and only charges a fee when customers actually buy. It’s the greatest software marketing machine ever and access is only $99 a year.
The vast majority of Apps receive effectively no marketing from the App Store, they are invisible except for a brief moment when they're listed under "latest".
Are you joking? I’ve been selling in the App Store for nearly a decade, haven’t had an app ranked in any chart for at least 5 years, do zero advertising, yet the checks keep rolling in. Explain how.
I'm supposed to explain to you why your apps, of which I know nothing, keep selling?
For one, it might have something to do with the fact that you have been on the App Store for a decade and that your apps do actually show up in recommendations. Not every App gets that.
Secondly, whatever your Apps do, they might be referenced on aggregators. When I look for an App to solve a problem, I google it. Inevitably, I'll end up on some site comparing apps for that purpose. The App Store doesn't do anything for me here.
You need to understand that you're the exception and that your experience doesn't generalize.
