On subs like r/IncelExit, it's often claimed that men make little or no effort to be attractive compared to women, and that this explains why women are seen as more attractive than men. For example, see this comment thread. This claim is completely false.

A study found that men spend just as much time on beauty-enhancing behaviors as women do, but in different areas:

Although women spent more time on make-up and cosmetics usage, men caught up with women in exercising and bodybuilding. Conclusion: Our study provides evidence that there may not be such wide sex differences in the intensity of enhancing one’s appearance as has been previously thought. We hypothesize that this might partly stem from changes in gender roles regarding masculinity.

This chart shows that even when it comes to personal grooming, women barely spend more time on it per day than men do. In fact, when women don’t feel compelled to look attractive for an audience, such as when they're working from home, they actually spend less time on grooming than men do!