Women like the smell of man, it is true
I noticed that guys do have a smell which annoys me and makes wanna fight them
But the smell for sure does not smell like sweat, is something different
if you wash once a day and do not have any body hair on you + do not exercise , it should be ok to go without deodorant or perfume
Dunno if this is the game changer though, in the sense that women will jump on you based on the smell alone. It might help though, especially if the girl in question is not on birth pill + ovulating ( more receptive to male attention than usual )
The woman sex drive from a natural stand point is kinda non existent for modern women, they mainly have sex because the guy wants to have sex and this makes her want sex in return . It is mainly a mental thing. That is why it is very important to escalate sexually so she feels wanted and thus turn her on