Before installing all those apps the author listed, I'd recommend this exercise: Let the battery die on your phone, and live one week without it. Cold turkey. Tell people in advance if you need to, give them an alternate way to reach you. Replace your phone for that week with a small notebook that fits in your pocket. During that week, every time you want to do something that requires a smartphone, jot it down in you…
I found Jomo app perfect instead. I blocked all apps and websites that are distracting or promote doom scrolling behavior in me. Once I went through a detox I’ve allowed them in the evenings for 15 minutes only when conditions are met (I’ve exercised and walked 10k steps etc.). I generally don’t have desire to use them then but I might have messages from my friends or I might want to publish something myself.