There's a women who use most of her money to buy skincare and useless thing that she think cut, she will take a loan because she don't have any money to buy foods. There's a men who save most of his money for his future e.g. buy house, buy car etc.
You can't generalize if women is better than men in something and vice versa.
I agree with you, this topic is meaningless because there is no research or evidence that says women are better at saving than men or that men are better at saving than women. It all depends on each person's personality, and each person's personality is different. You're right, there are many women who spend lavishly on branded goods, high-end perfumes or expensive jewelry... not all women know how to save money. While there are many men who can save to build a career and raise a family.