Hmm, like others here I seem to really be missing the point of these minimalist phones besides the straight branding behind them. I think the dumb Nokia feature phones satisfy most of these cases.

Personally I've taken a few steps to minimize time on my phone 1) use a long text password to unlock my phone (I also change the password every few weeks) 2) don't use any apps with endless scrolling 3) turn off notifications and open apps with purpose

These three things have worked out well for me.