AFAIK, that Setting URL stopped functioning starting in iOS 11 and is considered a Private API to Apple only, use of which is a common rejection.
URL can be used to go directly to Settings/MyApp/, but that doesn't fit your goal of which there is no current means outside of the user leaving your app for Settings global.
Otherwise, note that support isn't here. Feel free to use the 'Contact Us' link below to reach out directly.
KMT, thanks for the response!
When you say "Settings global" do you mean the settings app itself or the root of the settings app?
To clarify, I want the user to see device storages settings in the settings app for iOS where they can manage their device storage.
>do you mean
Got it the first time, thanks.
Apple never provides advance options on App Review. If you think your app would be rejected, then you should probably change it.