I think friendships between men and women are often problematic, because of the men. Sometimes what looks like a friendship may just be a man waiting for "his turn".
When I was in a romantic relationship with an extroverted woman, she often did things with her extroverted male friend (because of a common hobby), and he tried to get close to her. Obviously he didn't like me. When my relationship with that woman ended, he got mad at her when she turned him down. He thought now it would finally be his turn. He waited patiently for over a year and now he should be rewarded with intimacy. So their friendship ended when my relationship with that woman ended.
Such an awkward situation wouldn't happen with homosexual men, or with lesbian women who are friends with heterosexual men.
Me, I barely ever had female friends after reaching puberty. The majority were more intimate relationships.