From a Yiddishe standpoint, any frum married women is a traditional wife by definition.
From a secular perspective, it hearkens back to an idealized concept that never really existed in reality. There were rich families, where the women were pampered all day and never lifted a finger. And their were poorer families, where the women worked themselves to the bone. The “traditional wife”, who stays around the house all day making herself pretty and cooking for her husband and kids, is something from 1950s media as a fantasy both men and women would like to have.