So you get into the office (maybe) at 10am (maybe), reading some emails, firing off some responses, maybe taking a call or two. Then a ritzy lunch for an hour. Coming back to some more emails and meetings.
Some days you will be putting out fires all day. But the more mature the company is the less you have to do that. After 15+ years the company should have a mature executive team that can handle all but the biggest fires by themselves.
Most people reading this site are in the 1% of the world and could easily retire to a lower cost of living area right now or after a few years of saving. They usually don't: Firstly, because the drive that gets you to earn that kind of money also keeps you going. If you're used to and can handle 80 hour weeks, going to 0 is likely to make you feel unfulfilled quite fast (which is also why I don't fully buy the child story). Secondly, you always judge yourself in regards your friend group, and usually quite badly. This might seem absurd to us, but they might be looking at their friends with private jets, yachts and paintings valued more than their total net worth and not feel like they are at the top.
There are exception, of course, but I doubt you'll find many of them in the extreme environments at the top of the business hierarchy.
But if you've banked $100 million, that's a totally different world. You have wealth that grows by itself passively, and you'll never be able to spend it. You can live wherever you want in the world and never have to work, and neither will your offspring for multiple generations. Any work you do at that point is firmly in the "Play the video game after you won" territory.
It's like continuing to play your Civilization game for "Just... One... More... Turn..." after you defeated everyone and you're the only civ left.