It hasn't gone away. I'm a cis male, pansexual, married to a Trans enby who's also pan. We're poly with relationships outside of our own marriage.
I assure you that LG vs BT still exists. I've had people accuse me of not being honest with my partner (They know both my gfs, and I know both their gf and bf), or that I'm not actually pan because I'm only with "girls" (My partner is AFAB but enby (They/Them, working on getting top surgery), and my gfs are a cis woman and a trans woman (let that part sink in)).
So because we don't fit the standard traditional relationship roles, we're somehow "doing it wrong".
Ask her to describe what any of those mean, and she'll just mumble a bunch of bullshit about how they're performing surgeries in school, how DEI is just about hiring black people, and Critical Race Theory is about NASCAR or something.