This sounds more like you've just moved from a kid without responsibility to an adult with responsibility.
Most adults I personally know who live fulfilling lives are not doing much of these. They don't spend 90% of their discretionary free time on the browser. They play games.
Living your life based on others' opinions of what constitutes maturity is a good prescription of not living a meaningful life.
Is not wasting time playing games the same as wasting time browsing stuff online? it's all mindless entertainment and distraction.
[0] Not all games are solo mobile games; a good chunk of my gaming time is spent playing online multiplayer games with friends.
[1] cooking is a chore; it's a requirement for being a healthy adult. That doesn't mean I can't enjoy the act of doing it.
This is probably the most important take away in the thread for living a more fulfilling life.
That was why younger me used to think this:
> When I was younger I often felt I had played too many games and bemoaned the time lost.
Present me realized that if, 20+ years later I still have such fond memories of playing those games, then no - they weren't a waste.
Now it does probably depend on personality and the types of games you play. I don't think I'd think so fondly if all I did was play Tetris for hours and hours.
I'm not suggesting this is true for everyone and everyone would do better playing games. But I do realize that whatever I replaced games with was not even close to fulfilling.
Same with novels, TV shows and movies. I'm fairly selective of the ones I watch/read, and so I have good memories of them as well. If I can't find any interesting ones, I don't watch. Whereas if you just browse Netflix and pick whatever is appealing to fill the time - yeah, probably not a good idea.
Today I code games for fun, read lengthy articles about irrelevant things I care about and so on. I focus boring work on small time frames in between.