The first few times you mindlessly look at your phone after doing something like that are a real eye opener. You pull it out, unlock it, and stare at a screen full of nothing and ask yourself why you took it out in the first place.
My mood has improved significantly, and I find I suddenly have time for all those things I've wanted to get done but "haven't had the time for". Without a mindless dopamine trickle to default to I am forced to engage in actually meaningful and satisfying activity most of the time to alleviate boredom.
Do not kid yourself that the behaviors these things induce aren't intended. Marketers don't care about your quality of life, or the health of society itself, they just want your money and they will manipulate you into doom scrolling a bunch of barely interesting bullshit in order to shove ads down your throat without a second thought.