Very good and enlightening article. I wanted to add here that for iPhone users there is screen time feature which also helps setting time limit on selected apps so once you used the time you allocated it will not allow you to access these apps.

On the upcoming iOS15 there is very interesting feature called Focus. You can customise it in a way that it hide apps notifications and messages, etc. from reaching you when you are for example at work or spending quality time with your family and friends.