Does attending different universities in Australia have an impact on immigration?

There is no direct impact.

However, when applying for Australian skilled immigrants, you can get 5 extra points if you study in remote areas or low-density areas of Australia (excluding distance education). The minimum score requirement for Australian skilled immigrants is 60 points.

Australian remote areas or cities with low population growth include: Victoria (except Melbourne), all of South Australia, all of Northern Territory, all of Tasmania, Queensland (Brisbane and Except Gold Coast), Western Australia (except Perth), New South Wales (except Sydney, Newcastle, Central Coast and Wollongong).

There are only 42 universities in Australia, and the gap between universities is not as big as the gap between key domestic universities and private undergraduates. Of course, there are still some gaps between subjects in various universities. If you plan to immigrate to Australia after studying abroad, when choosing a major, it is recommended to choose a major in shortage on the Australian Skilled Immigration Occupation List to facilitate employment and immigration after graduation.