As a percentage of just the LGBTQ characters, both overall and in streaming specifically, trans characters were about 7%.
I'm not sure exactly what their total character count was, but that seems to put the percentage of trans characters solidly under 1%. Which is about right for matching the real prevalence of somewhere vaguely around half a percent. I think a slight overrepresentation could be justified, too, but there doesn't seem to be overrepresentation by these numbers.
According to this report: https://www.glaad.org/whereweareontv21
As a percentage of just the LGBTQ characters, both overall and in streaming specifically, trans characters were about 7%.
I'm not sure exactly what their total character count was, but that seems to put the percentage of trans characters solidly under 1%. Which is about right for matching the real prevalence of somewhere vaguely around half a percent. I think a slight overrepresentation could be justified, too, but there doesn't seem to be overrepresentation by these numbers.