Is Australia visa-free

I can't help signing. Australia is an immigrant country, but its government will also consider controlling the quantity and quality of immigrants to maintain domestic social, economic and cultural stability. Therefore, for some countries with high immigration pressure, the Australian government will restrict visa-free entry for their citizens to reduce the potential immigration pressure. The Australian government will assess the security risks of certain countries. Considering the high security risks in some countries, the Australian government will restrict or prohibit its citizens from going to these countries, or require citizens of these countries to apply for visas before going to Australia.