Alcohol vs DXM

to start off, I know they aren’t comparable. but for me, enough vodka really dissociates me. enough vodka for me feels like half as potent as robitussin, ik alcohol is a depressant, but why is alcohol giving dissociative effects? im drunk rn btw

edit: maybe i remember some things more than other from all my DXM trips, but even though alcohol doesnt make me feel like im flying, it makes me space out and again, dissociate a tiny bit