> The grandparent described the environment being "exactly" like iOS.

Let me make my point clearer: I was talking about the ability of downloading and installing apps freely from the internet. What I meant was a closed ecosystem where you can only use approved apps from the app store without the ability to install apps from third partys.

That does not mean that you can't use the terminal or XCode (if those are approved apps), or get a "developer license" to "unlock" your Mac.