Can you explain what you mean by this? I have been doing software development on MacOS for the last couple of years and have found it incredibly easy to run anything I want on my computer from the terminal, whenever I want. Maybe I'm not the average user, but I use mostly open-source Unix tooling and have never had a problem with permissions or restrictions.

Are you talking about packaged applications that are made available on the App Store? If so, sure have rules to make sure the store is high-quality, kinda like how Costco doesn't let anyone just put garbage on their shelves