UA Launches CBP's Intl Remote Baggage Screening on Select Intl Flights (1st SYD-SFO)
Apparently I was on the inaugural flight #870 from SYD and found out we no longer need to pick up our bags for our connecting flights.
So far it is JUST this flight according to announcements in customs.
I’m not at my final destination yet, so yet to see if it works