Similarly, I’m not 100% sure about this but afaik the + got commonly added before the IA, and I really dislike adding anything specific after a generalized “everyone who feels part of it” because doing that delegitimizes that the + actually means everyone. Though it also does suck if people feel excluded otherwise.

I’ve seen queer used to refer to the whole community though, but I think LGBT(+whichever addendums) has just been around for so long it’s most people’s goto, plus “queer” used to be a slur.

In my head it’s just “people not conforming to the majority group for sex or gender related reasons” and then I write whatever my brain decides is the term in that moment. Usually LGBTQ+.