You might want to double check your information about QF9/10. Perth Airport Terminal 4 is currently the only location in Australia with separate domestic and international terminals to have swing gates (bay 18-20) allowing either operation. At Melbourne, all international flights use Terminal 2 (Delta Pier), Qantas Domestic uses Terminal 1 (Bravo and Charlie Pier) and other domestic operations from Terminal 3 and 4 (Echo, Foxtrot, Golf).
You can check QF9/10 on Flightradar 24 to confirm this.
I'm guessing the flight you looked at departed from D11 rather than C11 on that day
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Back to jetways, I have replaced most of the Orbx jetways at YBBN and YMML with SODE ones in my sim so it's hard for me to test anything but I think you'll find the issue is with the specific jetway model used on that position rather than the aircraft. The aerobridge errors have been present since Orbx ported the airports over to P3D.
Below are examples I could find from Brisbane:
https://orbxsystems.com/forum/topic/171063-ybbn-jetways-not-operating-correctly/https://orbxsystems.com/forum/topic/122009-orbx-brisbane-scenery-jetway-not-aligned-properly/The issue also appears in an Orbx promotional picture of their AI traffic pack (4th image - 1st picture on 2nd row):
https://orbxdirect.com/product/aitraffic-aunz-p3dv4Thanks
Brendan