I'm unconvinced a prescribed two day set of days off is really the right way to balance work and leisure.
People end up focusing on milestones like TGiF or humpday, working for the weekend, etc.
As automation and globalism and remote work become more pervasive across industries, I hope to see more flexibility here rather than less. Culturally it would be unacceptable to take a random three day weekend and work 6 the next, but I think the benefit to mental health and productivity would be measurable. The always available culture in tech is a mess.