In my humble opinion, ADHD meds aren’t really amazing. They’re there so we can survive in a world where we “need to get shit done”, i.e. be productive for capitalism.
If theoretically you didn’t have to work, would you really “need” the meds? What does it really matter if those tasks you’re talking about take 2 weeks to do, if you have 2 weeks to spare?
In the end, what you’re asking here is the age old human question of, what is the meaning of life? Because you’re asking what to do with your time on Earth. And so naturally, no one can answer you. Meds or no meds, what you do with your time you have in this life is for you alone to figure out.
But again, in my opinion, if you don’t know what you enjoy or what you’re passionate about, just do stuff that vaguely interests you anyway. I’m sure you’ve had a passing thought of “that seems kinda interesting, but on second thought, naah”. Just convert that “naah” into a “yea”. Maybe it does really suck, but maybe you’ll find something amazing for you to do. Once you actually do something and get involved with it, it may actually become more interesting than it seemed at the start.