Everything about human beings has a lot of nuance and individuality, particularly when it comes to sexuality, but the fact remains, in general, men's sexuality tends to be more spontaneous and women's tends to be more responsive. Viagra doesn't work on women, for this reason. Physical arousal isn't enough in order to get women "in the mood." This is mainstream sexology - it's not a social construct. Of course it's a lot more complex than that - but we can't ignore that fundamental.

https://www.foriawellness.com/blogs/learn/spontaneous-vs-responsive-desire-whats-the-difference

"That being said, as a rule, spontaneous desire is associated with male sexuality. 75 percent of men and 15 percent of women report that they primarily feel spontaneous desire.

On the other hand, 30 percent of women and just 5 percent of men report that they primarily feel responsive desire.

Historically speaking, male-coded behaviors and preferences have been viewed as the “default”, or the “correct” way to do things, which may explain why men are seen as having higher libidos when it’s not true at all. Women are capable of being just as lusty. We just need different things to get there."