There are precisely two meaningfully dangerous spiders. Redbacks and Sydney Funnelwebs. The former keep to themselves, and the latter have an attitude problem because they have to live in Sydney
Both are covered by antivenin that all paramedics and emergency rooms keep.
Nobody has died from a spider bite in Australia since 1979. The Sydney funnelweb antivenin was developed in 1980.
Are you kiwi perchance? I've only heard kiwis refer to the country itself as Aussie, and I'm curious if there are other places that do the same