>In my experience, burnout is cured not by vacation, time away, switching teams, or switching companies. These are (attempted) implementations of the real cure: change of perspective.

This resonates with the published research on Burnout (mostly Maslach): she argues that the causes of burnout are best understood as mismatch between expectations and workplace reality. E.g. customer support firefighting can be tolerable if you don't expect yourself to be spending time on strategic thinkiing.

However, when burnout has happened, change of perspective / removing causes just won't do (those are preventative solutions). When you've burnt out, it's time for rest.