This article is quite old, but interesting to read as it shows that radical feminists have always been clear that sex and gender are not the same thing. https://www.troubleandstrife.org/new-articles/talking-about-gender/
But why I am posting it is because it has recently been announced that Deborah Cameron has died. And it maybe that those of us who aren't familiar with academic feminism are not aware of her writing, but she was an inspiration to many eg:
Karen Ingala Smith: ... shocked and saddened to hear that Deborah Cameron wordspinster has died. Lovely woman and sound influential feminist.
Maya Forstater: I am shocked and sad to hear that Deborah Cameron
wordspinster has died. She was a feminist linguist who noticed and wrote about the sex/gender language power games early on.