There’s also finding people aesthetically appealing, as an artist might find a sunset, but not feeling a need to go beyond that. I wasn’t exactly a tomboy or overly masculine expressing when I was younger, but I really disliked the feminine identity others tried to impose on me as I was growing up. Maybe this is being agender, I’m not sure. I know gender identity and labels are quite personal, I just feel “this is who I am” is the most appropriate label for me.
I also go through long periods of not finding anyone attractive, but maybe people just have to ‘hit’ you in the right way? (general you, and what I mean by ‘hit’ is tick enough internal boxes to produce a response/attraction). This is entirely my own theory, though!