This is some new hipster bullshit.
I have been using Symbian phones since 2004, they were smartphones of the 2000s. This bullshit idea that you have to give up a device to behave like a human is foolish. You can easily avoid these problems with a few steps, for example, I don't have any social media app, just WhatsApp, that does not really count IMO.
The last time I went to Pakistan, in the gatherings of friends I would just get fed up to leave the room as all the people would be watching TikTok on their phones they would stop me from leaving and promise that they won't do it again but after 15 mins, again the same thing.
The problem is that you need self-control. Mobile is the best invention of humanity but it can be the worst if you are not careful.
some rules I go by.
1. I almost never touch my phone in a company, I consider it rude.
2. I don't use social media on my phone, maybe check out Facebook friends on my Laptop, once a day.
3. Apart from music, I don't use the phone for entertainment (videos, youtube, etc) the reasoning is that opening something on Laptop needs a more conscious decision that you are now doing something. On the phone, if you get addicted to media, you get sucked real fast.
4. I try to keep my phone in my pocket or on a charging pad a bit away from myself, so I have to make a conscious decision that I need the phone.