I think most would accept that iOS is more secure than macOS. But to flip the logic the other way around and put as you did is a little disingenuous.
You could probably argue yes, since a 3rd party app isn’t validated in any way by apple
3rd party apps are validated via OCSP on macOS when the apps are launched.
A few years ago this was an issue, when millions of macOS users found that they couldn't launch any apps at all on their Macs, because Apple's OCSP servers were down[1].