Sounds good in theory but I'd be bored to death in a month, at most two. Traveling the world...maybe good for a few more months and that's it.

Wouldn't you yearn for any more impact given how much that amount of resource could improve the lives of many, if used wisely?

What you’re suggesting does not at all require a lot of money.

I met a youngster on Boca del Toro island in Panama a decade or so ago. I was about to be fired from my FAANG job so I used up years and years of vacation for one big trip before I was let go. We hung out for a few days while I was there (I don’t recommend the place at all btw). He cashed out from early twitter and was setting up surf schools all of the world. All he did was travel, surf, drink, and fuck. I’m still angry that laughed at all the dumb startups in the late 2000s instead of joining them. But this guy did what you’re suggesting, and I think there are many more unknown techbros who did it too.

And let others govern the world?

250M is not that much to solve a global problem, just take a look at bill gates fund.

Still huge amount of money which can improve life of millions.

Given history of the guy at the helm, most likely won't.

Retire? Anyone with more than about 10-20 million that continues to work has some sort of pathology that leaves them unsatisfied. Normal people rarely even get to that level because they are too busy enjoying life. Anyone making billions has some serious issues that they are likely stuck with because hubris won't let them seek meaningful help.