Perhaps I am confused after playing with other phones recently, but I thought we used to have an option to decide if an individual app could use WiFi, data, or not at all by selecting the 2 toggles under Data Usage. I find no such setting now, but apps I am sure I tweaked still cannot make a connection, as intended, so I can't be mistaken. I turn off background data to almost all apps anyway.
I have no need for Messenger and such to be running while away from the home, and want them only to automatically be able to connect when at home. It is also great for blocking games and apps from seeking ads. I see no reason to have to turn off the access for everything, and so the toggles were of benefit.
Have I lost my mind, or my toggles?