I've used it - there's no reason for them not to allow it now as there's no capacity restrictions.
If you're being turned away it's most likely due to new staff not knowing the rules.
Lounge access eligibility is based on a customer's class of travel, Qantas Club membership, Qantas Frequent Flyer or
oneworld membership tier, or partner airline benefit. Access to Qantas lounges is subject to the
Terms and Conditions of the Qantas Club.
Arrivals: Platinum and Platinum One Qantas Frequent Flyer members may access Qantas Domestic Business or Qantas Club lounges upon arrival, if you have travelled that day on any flight with a Qantas (QF), Jetstar (JQ, 3K or GK), Emirates (EK), China Eastern (MU) or a oneworld member airline marketed and operated flight number on your ticket.
Departures: Eligible customers may access a Qantas Club lounge when their next onward flight on the same day is with a Qantas (QF) or Jetstar (JQ, 3K or GK) flight number on their ticket. Eligible customers who are travelling in Business or First, are Platinum, Platinum One Qantas Frequent Flyers or
oneworld Emerald membership tiers, may access Qantas Domestic Business lounges. Partner and Associated lounge access is subject to various conditions of entry.
Temporary measures have been put in place such as lounge capacity restrictions, physical distancing requirements, changes to our food and beverage service offerings, and lounge operating hours. Qantas International First, International Business, Partner and Associated lounge access remains closed until further notice. Please be advised that lounges are subject to capacity at the time of your visit and remember to check our
airport service changes page for the most up-to-date information on lounge openings and updates.