hmm i think this depends on the fandom and the way each side views what bottoming "means"...like afaik, most gegos were once goges or switches themselves and then got turned off by that community, and are now gego entirely bc they have bad memories associated with the other side. before anyone says anything, i was one of those people, so this is also a personal experience. as for the appeal of gego itself, the common consensus is that it's "hot for the more powerful one to be taken care of/allow themselves to be in a more vulnerable position with their partner". on the other hand, we have people on goge side who want to say geto is a cis woman, is female coded, and turn stsg into a straight ship entirely so you can form your own opinions on that lol. not to mention how they say he bottoms just bc he has longer hair or that gojo is the more powerful one so he has to top. like i've definitely seen a lot of questionable "reasons" that have made me raise an eyebrow.