Are there Australians or Australian forces who tried to influence the 2020 us election?

Well Fox is controlled by Australians, the Murdoch Family.  So yes, there are some Australians who did try to influence the 2020 U.S. election.  But there is no evidence that the Australian government took any active role in influencing the U.S.

While most of our allies are happy that Trump is gone because he was unpredictable, they are used to both parties in the U.S. being somewhat to the right of the international consensus but committed to working with other democracies.  As there is not much difference between the Democrats and Republicans in terms of their position on NATO and protecting our allies in Asia and Oceania, there is no reason for the governments in Australia or France or the UK to try to influence U.S. elections.  But the wealthy in those countries do have some holdings in the U.S., so individual citizens do have reasons to try to influence U.S. politics.

Not likely..............