As someone who thinks that many games benefit from having characters from diverse backgrounds, I can't in any way reccomend anyone to feature trans characters unless the entire game itself is about trans struggle (like that Swery game). There is no such thing as "good" representation, all portrayal of trans individuals is, in my memory of the last 5 or so years of the industry, intensely problematic.
Every element of a trans character is ripe for criticism. Are they too feminine, not feminine enough, do they have a dick or not, are they wearing makeup, etc. If I put a chinese person or a black person in my game, unless they act like a stereotype, people arent going to reject them as valid representation. If the game is abour a squad of soldiers for example, people will accept that there is a chinese or black person on the squad and not flip out. That isnt true of trans people. The appearance of trans or nonbinary people in the work is itself cause for anger, and given that the anger and confusion seems universal no matter what the characters look like, your only option is to trot out a trans person like a show dog when promoting it or just dont tell the community the character is trans before launch.