It's also a very old problem--the need for people to find meaning in a world that is essentially devoid of any kind of meaning for them. The old, ancient problem. I would argue that these are the two defining problems of life: finding meaning, and finding purpose. The way we solve the first, by seeking meaning, and the way we solve the second, by finding purpose, is the same way we solve all other problems. Because, if we aren't finding meaning and purpose in life, then we are missing out on the very essence of what makes our life worth living.
Anyways, knock the dopamine fasting practice all you want, I sure do xD. But it’s not a first world problem at its core, people have had these problems in much less active times in humans history and across different societal structures.