That wasn't the standard on the Mac, and looks like it still isn't. That platform has a strong tradition of utility apps that add to or modify core OS functions, and when I looked up "essential mac utilities" today, I found recent listicles with items like Alt Tab (an app switcher), Magnet (window management shortcuts), and TinkerTool (change hidden system settings - exactly like emoji toggles for iPhone).

The iPhone was a big departure from that.