Yeah it’s tricky. Using “female” as a noun in a non-biological context is often used by incels and misogynists in order to dehumanise women. Whereas there isn’t the same trend of certain groups using “male” to dehumanise men, or at least I’ve never heard of it happening in real life.
In a vacuum, both would be the same, but because there is a much larger trend of using “female” to dehumanise women than using “male” to dehumanise men, it’s not a true double-standard.
And as long as you’re not being a dick, especially if English isn’t your native language, then people will know what you mean. But if you are consciously trying to make an effort, then don’t use “female” and “male” as nouns to refer to someone’s gender.