It is interesting. I guess in the end, you’d have to ask enough lesbians to get that answer.
Elle Beau ❇︎ had said in many of her articles that women initiate opening marriages far more than men. And she has sited supporting studies. There are many many articles out there saying pretty much the same, women get bored sexually and crave variety.
That suggests it’s less a broad gender issue and more an issue around something else.