Generally sex and gender are separated now for discussion and clarity. You've described sex rather than gender.
Male and Female tend to be used to describe sex, while man and woman gender.
So for example a transwoman is male, but expresses gender as a woman. Cisgender or cis, just means their sex and gender match in the traditional sense.
I'm a Trans woman. There's nothing "Male" about me. Biologically I've got the same hormonal levels, muscle mass, and bone density as a hypogonadal cis woman of my height and weight. I have all the same disease risk factors, too. The "Biological Sex" distinction is based on misinformation and supposition.
It was a clumsy and needless addition to the (fantasy) game, but to play the devil's advocate here;
If they based their decision on biology of Homo Sapiens Sapiens from the "Realm of Earth" to apply to fantasy species or even humans from another world they would be correct. They didn't need to be correct on that one, but hey....
Wrong.
The overlap of strength in men and women is so close to identical as to make any distinction irrelevant. It only becomes "Relevant" at the absolute extreme of human performance in the modern era, where the most extremely trained athletes pull ahead and even then it's only due to differing social expectations.
Take Becca Swanson, for example. She's 5'10" tall, 220lbs, and she can deadlift 694lbs.
In the same weight category, an "Elite Male" Deadlifter should be able to lift 607lbs. But the world record for a 220lbs dude is 810.
Becca Swanson's competition for Strongest Woman in her weight category is -vastly- smaller than Andrey Belyaev's competition. Because women are specifically -discouraged- from weightlifting. If there were an equal number of women deadlifters, there's a good chance one of them would be as strong as Andrey Belyaev, or so close as to be functionally equal.
And before you get into questions of height and weight where men are bigger: I'm 6'2". I'm about 8 inches shorter than my mother was when she was in High School. If she'd decided to go into weightlifting she'd have crushed Andrey's weight record by having a greater mass than him.
Even without weightlifting training she could lift my 5'6" tall father and swing him around like a ragdoll whenever she wanted, but never did because he professed to hating it.
For reference, between 2012 and 2016 there were 6,000 women and 15,000 men in American Powerlifting. With more than double the sample size, and more men in higher weight classes because the women's weight class tops out at 84+ while men's weight classes go over 120+, it's easy to assume that women are smaller and weaker.
But tall women, like my mother and I, are -expressly- pressured not to do "Manly" things like sports. Mom did Basketball in High School but was not -allowed- to play in College due to her height. Meanwhile 6'10" players were -sought- after for the men's teams for obvious reasons.
If we could control for that kinda double standard in society... Woo boy.
But until then, the assumption that dudes are stronger is just a fantasy borne out by a society which explicitly tries to make it reality. And that's Survivorship Bias, Baby!
