Collecting things, writing (since you would already know if you write this post or journaling[ try a junk journal]), reading, video games, photography with a phone doesn't require a skill or learning curve, hiking, geocaching, yoga( doesn't require talent but you have to memorize the poses and be flexible), exercise, volunteering (ie animal shelter), be an enthusiast (ie movie, food, or other niche within a category).

If you are worried about "talent" or "skill" required for any hobby just know: I am a musician, artist and writer. When I was 20, I was so bad at art I could barely draw a line or a stick figure; I could barely play a chord or identify a note( after a whole few minutes lol), my writing sucked.

I went on YouTube, binge watched videos, followed tutorials, read blogs, took free courses on platforms, and now I can get atleast a few people to comment that they like my work. Rather, being good at something is subjective and only matters to the person doing it, not who you compare yourself to. I was in the least bit creative as a kid. In my twenties, I actually checked out books from the library about creativity and how to hone it. There are also many YT videos for less effort. Also consider that abstract art can be literally anything you put on a canvas, and you can even make your own sub-genre of abstract art up, techniques and all. It can be non-profit but I have seen people make 1K per marble pour on canvas which a ten year old can do and sell.