I think I know what constitutes learning gemara. I don’t know what Chazal didn’t want women to learn, whether it was gemara as a limmud, or the topics of gemara as well. (Discussion about a sugya would not be learning through a shtikel gemara!)
And I think I explained why the two questions are not necessarily related – what constitutes as talmud torah does not necessarily constitute to the kind of learning that women are not allowed to do.