There are no countries in the world, including "bastions of freedom" that allow infectious public health risks to willfully violate quarantine,
BTW: one side-effect of the quarantine travel restrictions was that people overseas saw Australia as being in some sort of draconian lockdown, when, in fact, life was almost totally normal for most of the pandemic because of travel restrictions and qurantine (outside of Melbourne and parts of Sydney in 2021). And many Australians (especially those without overseas ties) assumed that life was "normal" for the rest of the world, when there was, in fact suffering and death, in addition to restrictions.