Ask HN: Whats the best friction approach to breaking phone habits

been thinking about friction design patterns vs pure blocking for phone habits. blocking feels punitive - you hit a wall every time. friction is different - you add a 5-60 second delay before opening the app, but you still decide to open it. the pause breaks the automatic reach and forces intention.

any hn folks tried approaches like this? does friction actually change behavior better than removal/blocking? curious what patterns work best in practice.