happiest_at_40000 , I really like your positive thinking for the future but be aware that the QF F Lounge might not be open by December 2021, plus unless you are a citizen of 3-4 countries, you might not visit; the UAE, Qatar, Oman, Singapore & Hong Kong in the same trip by then. It's a crystal ball that nobody knows at the moment. Also, don't keep hopes high for Al Safwa. IMO, it would not open until travel recovers at a certain rate or until the 2022 World Cup in Qatar where there would be enormous amount of people visiting the country.

If the QF Lounge is open, according to the oneworld rules, you wouldn't have access to the QF F Lounge when flying LAX-DOH-MCT as the first leg would be in J.

Seattleguy10 , the "R" fare restrictions only apply for tickets issued by Qatar Airways on 157- stock, as your ticket is issued on AA 001- stock, you would have lounge access at Doha ( Al Safwa if open, Al Mourjan if not )