Nope I was a comic book nerd from about 7 or 8 years old. And not just girl comics, which are older than I. You would cry at some of the comics I once owned.
That's why I said
mostly a male thing! I know females liking bro-stuff exists, it's just relatively more rare.
I quite like bro-stuff myself since I was a kid, and I had Gundam models when I was in college. But I can promise you I don't have one single female friends irl that also have Gundam models.
Some of my female friends irl may play games like Stardew Valley, Nintendo games or metroidvania etc. But nobody owns Gundam models like I did.
So I feel this kind of stuff are mostly a male hobby from my experience. There are some themes in the entertainment that's just inherently more attractive for males.
Edit: I also have a few American comic books collected way back in 2000s.