Trans care definitely isn’t banned, as another poster linked there are state-backed clinics that provide it. Lgbt media has been censored, but not all of it, so I don’t think lgbt media is blanket banned.

The thing about China’s censors is that they’re not super consistent and they never give clear reasons for why they do what they do, so there’s a lot of reading tea leaves when they censor something to figure out why they did it (also a lot of the censorship is done preemptively by companies who are afraid of crossing the line they can’t see).