Realistically a lot of these aren’t even system settings, they’re user settings and while system settings already exposes a lot of user settings, which are whic

Realistically a lot of these aren’t even system settings, they’re user settings and while system settings already exposes a lot of user settings, which are which are very poorly indicated. Beyond that, putting all these in system settings also means you wind up with a UI for every single type of app, which seems like it would get both unwieldy in short order and out of date. It makes me miss the old type and creator codes from classic Mac os, where you could individually specify preferred apps for opening specific file types, or files created by specific creator apps from the “get info” settings for the file. That mapping was stored globally, but could be changed from any relevant file’s info window and thus was extensible simply by the nature of just needing metadata from the file and a pointer to the app. I guess the big flaw with that for apps like mail, or calls is that you don’t really have a file. You’d need some interface for mapping uri schemes to apps, and good luck making that intuitive to the end user without either needing every app to expose that in its own settings, or some sort of central uri to human readable thing mapping, which again suffers from the unwieldy and out of date problems.