The AA page does not have details of QF domestic allowances
The QF page has details for QF members
The relevant pages for general OW allowances is
https://www.oneworld.com/ffp/extra-baggage-allowance and
https://www.oneworld.com/ffp/sapphire-privileges
Originally Posted by OneWorld
As an Emerald frequent flyer you can check in one additional bag for free in addition to your ticketed baggage allowance when you fly on oneworld airlines. If your ticket mentions a weight allowance, you can check in an extra 20kgs (44lbs). (This benefit is not available on British Airways 'Hand Baggage Only' fares on select short-haul routes.)
the other page states
Originally Posted by OneWorld
Extra baggage allowance for Emerald frequent flyers
As an Emerald frequent flyer you can check in one additional bag for free in addition to your ticketed baggage allowance when you fly on oneworld airlines. If your ticket mentions a weight allowance, you can check in an extra 20kgs (44lbs). (This benefit is not available on British Airways 'Hand Baggage Only' fares on select short-haul routes.)
Qantas's domestic allowance is at
https://www.qantas.com/travel/airlin...mestic-flights and indicates 1 piece max 23Kg in economy and 2 pieces max 32Kg in business . You are therefore entitles to 2x23Kg in economy and 3x32Kg in business