You're talking about notarization on macOS. Notarization on iOS is vastly different. On iOS, notarization is more or less App Store review but with fewer rules.
Honestly, iOS notarization really muddied the waters. IMO, because Apple decided to name them the same and thus presumably considers them the same, we should be just as critical of and worried about notarization on the Mac as we are of notarization on iOS.
