As far as I can tell (and I’ve been reading NR nearly fifty years) NR hasn’t changed its position on any gender issue. One columnist wrote an article which several others disputed within the website.
https://www.nationalreview.com/corner/transgender-debate-conservatives-cannot-compromise-truth/
https://www.nationalreview.com/corner/transgender-issues-conservatives-should-not-compromise/
Seems to me on homosexuality, Mr. Buckley advocated tattooing AIDS victims, lol.