There's a certain type of plot I've seen in both American and Korean entertainment. It doesn't necessarily involve gay characters, but the more general posing as a male. You might be familiar with movies like She's the Man, or Just One of the Guys. Something like that exists in Korean TV(which I've seen mirrored in Japanese and Chinese shows) where there is a female protagonist who dresses masc to go "undercover" as a man for -insert whatever plot reason-, and no one around them can tell they are not male(even though it's blatantly obvious to the audience... I hope).

Over the course of the story, the male lead develops feelings for the protagonist. Confusion and misunderstandings reign. Sometimes the guy may question whether they are gay. Usually the climax of the story is when the female gets into a situation where they are forced to reveal themselves in a way that removes all doubt that they are anything but female.

Anyway, this kind of show in general drives me up the wall since before I can remember because I'm not capable of suspension of belief of this level; Where I can pretend a person is not a man or a women(when they are not in the least bit androgynous) just because they have have short hair and a suit on, but a family member likes to watch them so... I can only be like that dude in Shakespeare in Love and declare,

That woman is a woman!

..over and over.

As I said though, those examples didn't involve a gay character, and the premise is different in that the actress is still playing a female character, just that they supposedly pass so well that no one in the story universe can detect it. In the current example though, the male character can pass so well they can't even find an actual male(even trans) to play him! Hmm... I wonder if that says anything at all about the effectiveness of Transition? Hmm.

Also, there's the TV series Chad. Where a 40 year old actress outright plays the role of a teen boy in high school. Looks nothing like, though.

All these silly stories might be fine if people didn't take and run with them into real life like they had no critical thinking skills. Which is happening more and more often. It's just fiction, people! Leave it in that realm and everyone will be happy.