I love having a smartphone because it's a cybernetic appliance. It's awesome. I just don't need it constantly occupying my attention. It's annoying how many apps, even system ones, that want to show notifications all the time. I wish iOS supported an affirmative toggle, let me disable all notifications by default and then let me turn them on one by one. Do not disturb by default and let me affirmatively enable "ok to disturb". I filed ERs to that effect when I was at Apple but I'm sure they went to the Future/NTBF black hole.
I ask because I've been trying to make this system work for me, but find that the app update flow (partner unlocks phone -> update apps -> partner locks phone) always breaks and I end up with an unrestricted phone.
The fact that you can't allow updates while also not allowing installation of new apps is a huge blocker here for me.
If I really need to know the answer to something, I will ask Siri. And most things I just add to my to-do list for looking up the information later.
It's been great!
I delete all app that I waste time in, but keep one that are useful. (I won't blow two hours scrolling Lyft, and it's very helpful sometimes) I then set screentime permissions to block websites I don't want to use (like reddit), and prevent app downloads. I set a screentime password and give it to my partner.
This way I get all the "benefits" of a smartphone with none of the scrolling and time wasting. It's also very easy to switch it back to a full smartphone, get the password from my partner and turn off screentime. I'll do this when I travel internationally for work.
Hope this setup helps some others.