Switzerland has a slightly high suicide rate (not the best inverse metric of happiness but a correlation on unhappiness at least) for a country with such high standards of living, so if we look into suicide rates over time we also see a conundrum that over the past 20+ years the suicide rate is overall decreasing but has mostly flattened out. But from what I've observed anecdotally it still has problems like other developed countries with legacy industries declining (see: watchmakers and other artisanal crafts trades rather than mining) where boomers in the country are pretty miserable and that will probably be noticed in macro level statistics.