ope, it probably doesnt. that was just my knee jerk reaction, from experience with an ex
i think porn brain probably manifests online as being excessively focused on kink?
i agree that its not *necessarily* porn brain. i do think a lot of ppl who otherwise would enjoy “normal” sex build such a strong association w a certain kink through porn that it gets in the way of their irl sex life (this happened with my ex)