Here’s a thing a lot of people assume: all trans people are queer.
Here’s a thing people should know: queer is a definition that means different things to different people, and not all trans people are queer.
What do I mean by this? Well, I’ve had a few people ask me if the fact I liked girls before I started transitioning, and still like them now, does this then mean I’ve gone from being a lesbian to being straight?
(For the record, no: I’m pansexual).
Like so many of these things, a trans person’s sexual orientation isn’t tied to their gender identity, and how they choose to identify is entirely up to them. And it isn’t really anyone else’s business, unless they happen to be in a relationship/sleeping with that person, and even then it’s up for debate.
Whilst some people will categorise non-cis genders as queer, that doesn’t mean everyone does it, and it’s quite presumptuous to do it to all trans folx.
As with all these things, the best position is to not make any assumptions, and the people around you who are affected by these things will let you know if it becomes necessary.
There’s a reason we have that unwieldy LGBTQA+ acronym.