oven’s supposed to be hardwired OR have its own circuit so they’ve actually failed Australian electrical safety standards. Meaning that house fails minimum standards AND there’s no way that a sparky would have signed off on that, so it hasn’t had the mandated electrical safety checks done either.

EDIT: I think some hot water has to have its own circuit as well but I’m fuzzier on that deet. Oven wiring has been a thing for decades though so they have no fucking hope there.