Nope. But it might have changed my ability to act on it.

I was bisexual before and I'm bisexual now, and I always primarily preferred women. But whereas before there were relatively few men I found attractive, now I've discovered that most straight men treat women TOTALLY differently than they do other men (and there's also light-years difference between that and how gay men other treat gay/bisexual men). So there are a lot more men in my "attractive and available" pool than before. Presumably there are also fewer women in that pool now, ironically enough.
I'm married, so it's moot in any case, but it's been interesting to observe.
I do find it frustrating occasionally when people assume that there's "no point" in becoming a woman if I'm still interested in women romantically - that while a cis woman can be gay or bi, a trans woman isn't "really trans" if she is. (Nobody in this thread has said so!! It's a commentary on people elsewhere who assumed that HRT would make me straight.)