I have a hard time understanding this.
I can agree that things in macOS/iOS settings may be broken or unintuitive or whatever (I have no examples but I'll believe you).
But a shitshow? No. Window's Control Panel is a shitshow.
What I'd like to know from you is, if macOS/iOS settings isn't the closest thing to perfect, what is? My Gnome settings control panel on my main desktop is a certified shitshow. But macOS/iOS? Nah