I did "won" the upgrade lottery at -37h mark and was happy to visit the QR premium lounge. Nice, quite and relaxed lounge with vey good food and service. Finnair for sure does a good job to forward people to the Marhaba lounge because there was max 10 people in the lounge and maybe from those only 4-5 flew to Helsinki. Timing in overall for the Helsinki flight is very good because there doesnt seem to be other oneworld or QR flights leaving from SIN at the same time.

Just for curiosity, will have at least two flights from SIN to HEL this year where I already have the upgrade to business confirmed. Is there other lounges what I should check with AY gold status / J ticket access?