from the patch notes found here; [RELEASE] Release Notes (1.22.2.0) World Update VII: Australia Now Available! - Community / News and Announcements - Microsoft Flight Simulator Forums
Photogrammetry Cities
Sydney
Melbourne
Brisbane
Hobart
Adelaide
Perth
Cairns
Darwin
Townsville
Mackay
Bunbury
Make sure you ‘get and install’ the world update from the ingame marketplace. Also check that photogrammetry is enabled in your data settings.