If you ever want to go more hardcore into keeping distracting apps off your phone I recommend checking out MDM for your device.

At least on iOS you could connect a mac and then use Apple Configurator to block installing new apps. This made it so you would have to use your Mac to enable installing new apps, creating a large amount of friction.

When I used iOS I used this method to create a "smart dumbhone" because you could have smart apps like mapping, without a browser or the ability to install distracting apps.