late to the party but as a lesbian, yes, there is a lot of focus on romance in a huge majority of lesbian and sapphic spaces.
being arospec, sometimes i fear i look at women through the "male gaze" whenever i find them sexually attractive and also fear that i am propagating the "predatory lesbian" stereotype by doing such. i am allowed to find women hot, i am allowed to find women sexy, i am allowed to feel sexual desire for women and i am not "damaging" the lesbian community because of it.
i believe the term you're looking for is bambi lesbian, which did in fact become popular on lesbian tumblr.
and yes, with the whole "soft cottagecore uwu girlfriends" fantasy being incredibly popular in most if not all sapphic spaces it is quite alienating to see all of this people talking about what they think are universal experiences. posts about aro lesbians are usually about how "valid" we are and that's it, it's hard to find stuff about aro lesbians talking about their experiences (at least on most sites i've been, or we are just mentioned on posts about lesbians in general).
in all honesty, the lesbian community could use more diversity when it comes to this type of things, it does get annoying seeing the same "i want to live in a cottage with my wife and do her hair while sitting on her lap ? uwu" type posts whenever i search up lesbian content.