Actually, it’s far from being comfortable or even usable when it comes to android settings. You can’t, for example, to set an app to work only when connected to WiFi and only when in the foreground.
I think a feature like this can complete GlassWire offering and provide full control over the data.
As an example you can check:
InternetGuard Data Saver Firewall (I get an error message when I try to add a link to Google Play store)