Why are so many lesbian films set in the past?

by Anna
Ammonite (2020)
With Ammonite's trailer now familiar and the film and Kate Winslet continuing on the festival and press rounds, there's been buzz aplenty for Francis Lee’s follow-up to the excellent God’s Own Country. That said, there are some who have a quibble or two. Jill Gutowitz expressed mild annoyance, asking:
(She followed up by saying she’ll be seeing Ammonite.) It is a good question. And why are so many recent WLW-themed works period pieces?