As quality of life has improved over the centuries so to has the quantity of evidence of people complaining about their quality of life.
Just picturing an alien archaeologist "so, as they stopped being crippled by polio or losing their lives building railroads, they complained about having to wash the dishes?"
Oh absolutely. It's just compared to thr vast majority of humans who have ever lived, our complaints are sort of like when billionaires nowadays complain about being taxed.
Our lives are almost unimaginably better, somehow doubly so if you are a woman or minority, than most of the entirety of human history. So I find it ironic that there'll be such a more a significant record about the most relatively pampered people in human history complaining.
Yup! Because even on short term trend lines, most of us in the first world are doing fine relative to the world, which I find incredibly short sighted. Would you trade places with the children who make your clothes?