On correctly sexing, my husband and I were watching The Queen's Gambit a week or so ago. One of the teachers is a transgender male. I didn't know before I watched it but as soon as I heard the voice I knew that was a male trying to sound female. Went completely over my husband's head though until I'd pointed it out. I don't know how because it was so obvious to me.
Yes, I saw that too! I was on a Facebook discussion the other day and a GC friend of mine brought it up. It was interesting because almost all the women in the discussion had seen it at once. I saw it, doubted at first because it was very anachronistic but the moment he spoke I knew. The men in the discussion could not tell.