No soap at all even on vulva??

Are we supposed to use any kind of soap at all? I’m not talking inside my literal vagina but more so my pubic area and vulva? I want to try it but it’s seems so counterintuitive to me. If use just water to clean my privates will the odor actually go away, will the pee smell also go away??

I do notice sometimes soap especially bar soap does seem to make my odor smell worse after a couple hours of washing myself, so I think there is something to it.