I think this is less about being poor or struggling to survive, more about the struggle to find meaning in modern life.
I’m doing well in life. Could certainly be doing better (who couldn’t), but my bills are paid, and there’s food on my table. I don’t worry about these things, and I don’t struggle. But there have certainly been times when I’ve felt the sentiment of the OP. When your needs are met and you feel a sort of emptiness, trying to fill the boredom with the next best dopamine hit. I almost feel like I’m just floating through life, not yearning for, yet waiting for the day it all ends.