Prime minister Anthony Albanese says Australia will be holding an event in New York (when he is at the UN in September) to gain more international support for the ban against the tech giants:

This is our position, it is up to other nations what they do, but I know from the discussions I have had with other leaders, that they are looking at this and they are considering what impact social media is having on young people in their respective nations and it is a common experience. This is not an Australian experience, this is a common experience which is seeing governments, including – I will be meeting with Prime Minister Luxon in a couple of weeks across the ditch. New Zealand, for example, is acting along pretty similar lines.