As a freelance professional with a solo practice, sure, I get to make my own hours. I also (technically) get to take vacation days whenever I want. And to some in more rigid arrangements, that is enviable! Of course, the flip side of the same coin is I don’t get paid when I don’t work (not enviable).
Still, I adjust my work schedule every summer in a way that both pays off from a mental-health standpoint and also from a dollars-and-cents standpoint.