Yup, would have to agree with this. I don't see how the smartphone is really the issue, when the internet as a whole is the "problem" (or really, you yourself are the problem).

I use browser extensions to keep myself from loading distracting websites out of habit, and that generally helps as long as you have the discipline to not just turn the extension off or something. I also don't have chat apps like discord or slack open most of the day, because those are majorly distracting to me as well.