"Woman" is more appropriate for adults 90% of the time unless you're talking specifically in a scientific context. "Female" feels way too medical, like you're talking about something foreign or of another species. Before incels popularized it, I'd never heard the term used as commonly as it is now. In fact, I'd only ever seen it used the way it is now in media where you're supposed to recognize the character as sexist ("haha, the female sex is a mystery indeed" kinda thing).
It's become oddly normalized in Gen Z, but the question I have is: why aren't men called "males" nearly at the same frequency?