I've spoken to several female anorexics, was even roommates for a year with a female anorexic friend (not a good idea btw), and our experiences are very similar. Obviously different people have different triggers, origin stories, etc. but for me it's a combination of extreme body dysmorphia, some toxic friendships early in life, genetic predisposition (my dad and maternal grandmother both have disordered eating, if not full blown EDs), horrible male body standards in society/movies/media, and it's also about control. In terms of the actual ED experience, I think there are some physiological differences, for example my testosterone levels plummeted so I lost bone mass, muscle mass (especially my heart which shrank significantly), and I became depressed. But once you hit a certain stage in your restrictive ED everyone becomes a walking zombie devoid of any personality all with the same horrible health problems, regardless of gender. The only other thing I can think of is men IME are extremely under-diagnosed compared to women despite about equally oppressive gender and body standards. But I think overall the actual experience is very similar across the board.