Wow. Don't tell me you've also had a long career in the military as a special OP and a decorated hero, and you're one of those high school sports superstars (!).
Kidding... just picking on you.
I agree, 100%.
Regarding the original post, anecdotally and recently notable...I was the most excited to get back to work after a vacation; more than I've been in very long time (perhaps because I am now mainly doing what I have been trained to do, with most of the training behind me, and supervision & advisement have become more peer support and collegial collaboration).
IMO that's a good sign of intrinsic job satisfaction and outcomes of job productivity, security, burnout, etc.