I don't agree that leisure is inherently wasting time, which I think is a pretty common belief across North America in general and within Tech specifically. I don't know if that's what you're asserting, but it does seem to be the thesis of the backing site ("if you spent all this time that you spent on a leisure activity elsewhere, you could have XYZ 'better' skill!")
Of course, all things in balance; gaming addiction is a thing, and I've absolutely been guilty of using Titanfall 2 to farm dopamine rather than taking my dog for a walk or tidying my room.
I'm glad this helped you, but I already feel like my life is under enough pressure to be more efficient, more productive, have more of an impact, when I'd really just like to slow down and enjoy things more.
(I'm also a little sad, I originally thought this would map time spent in a game to a _corresponding_ skill, e.g. "400 hours in space engineers" -> "level 5 systems architect," or something. That's on me, it's not a criticism, but it's influencing my disappointment.)
And the whole site is coded by claude