Little Snitch seems to have solved it fairly well on macOS.
Apple doesn’t allow software like that on iOS.
Apple doesn’t allow software like that on iOS.
[0] https://support.apple.com/en-is/guide/mdm/mdmc77c9609/1/web/...
maybe some kind of automated little snitch settings ⇄ profile converter?
It’s possible that your solution might work for some small fraction of users, some of the time, for known spying hosts. Many people still want to access Facebook and Instagram, though.