https://nichegamer.com/microsoft-cautions-developers-to-avoid-curvy-female-characters/
#Microsoft really should mind their own business about what kinds of characters players want to play. It's okay for a character to be "sexy". I think that ultimately, the style of the game is going to depend a lot on the game. It's silly to pretend that every game should fit awfully particular and seemingly utilitarian criteria.

https://www.sciencedirect.com/science/article/abs/pii/S0747563222001637
There also isn't really a scientific basis for it.