My take is that more and more people have Covid but nobody is testing so we don't know the numbers. And since we don't know the numbers and the sick people just stay home we don't see how household budgets are strained, how parents struggle with their kids and their jobs when their partner comes home from work and collapses on the couch, and we don't know how much decision-making deteriorates as a society due to brain fog spreading. Two of our friends suffering from Long Covid just got Covid again.
I found this page about SARS-CoV-2 in the Zurich waste water via @xtaran
https://sensors-eawag.ch/sars/zurich.html