It could be like that. Although depends on the community. I had a misfortune of knowing a few trans people and one of them, a girl (FTM) said once that she thinks the T doesn’t belong in the acronym, because it’s a gender identity and not a sexual orientation. Nevertheless, she was pro-“trans rights” and still connected these issues of orientation and identities. I think there are some other trans people like her. But of course it’s up to non-trans LGB what they will do with that.