The new F lounge is now open, and they let me in yesterday with no problem. I'm a CX Diamond (OW Emerald) and I was flying PEY.

I didn't even know the F lounge was open yet so I tried to go into the J lounge. I handed the gatekeeper my CX-printed F lounge invitation and he turned me away and pointed me to the F lounge instead (separate entrance, down the hall to the right).

No problems getting in, tons and tons of empty chairs, good food and service. I do sort of miss having a buffet bar to go pick at, but the kitchen put out fresh food fast.