It makes it very clear the LATAM lounge is BA/IB only, and the other lounge implies AA only as it is a 3rd party and not a OW lounge. so the implication is no QF lounge access if you look at the airline requirements.

To be fair to QF, I doubt the SCL service is loungeless, but maybe not accessing The superior LATAM lounge.

it is all speculation until someone actually flies and posts or reviews.