The crApp Store is full of scams. https://www.washingtonpost.com/technology/2021/06/06/apple-a...
https://www.wired.com/story/chatgpt-scams-apple-app-store-go...
https://arstechnica.com/information-technology/2023/02/pig-b...
https://www.forbes.com/sites/gordonkelly/2021/05/15/apple-ip...
https://9to5mac.com/2022/01/11/developer-exposes-another-mul...
There's practically endless proof and documentation for this.
The App Store is actually a honeypot for scammers. It's a single point of failure, because once you get past app review, which is easy, you're home free, and it's also relatively easy to manipulate App Store search, App Store ratings and reviews, and App Store Search Ads.
As a non-scam App Store developer, my biggest problem is discovery, i.e., getting my app in front of the eyeballs of potential customers. It's vastly easier to do that in the App Store than it is via so-called sideloading, especially if you have no ethics. (Unfortunately, I do have ethics, which significantly limits my options for discovery.)