It's very weird that these aren't in the already existing top level "Siri" or "Privacy & Security" settings tabs. Apple has had a problem for a while now where it seems like they just don't know what they want to do with the settings app, and like you said, doesn't have anyone in charge of the "global" view of the settings. Why are, "Appearance", "Desktop & Dock" and "Wallpaper" all different top level items? Why are "Wi-Fi" and "Network" different top level items? Why is "Battery" top level, but "Time Machine" and "Sharing" and "Date & Time" are all under "General"? Why is "Autofill & Passwords" under general and not "Privacy & Security"?

As someone who has spent a lot of time trying to configure my iOS/Mac experience to be more intentional/less addictive, I am intimately familiar with Screen Time at this point. And my gut says this isn't an oversight on Apple's part at all.

This is very intentional because in my experience, Apple's attempt at actually managing screen time and device access is mostly theater, and it absolutely tracks that they'd bury this config within Screen Time.