This was a huge problem for Julia Gillard in particular. Despite being one of the most effective prime ministers in Australian history[0] you didn’t hear about this from the MSM at the time. Supposedly serious commentators complained in the Murdoch press about her _choice of clothing_ [1].
With powerful filters like this, blurring the achievements and policies of even the very leader of the government of the day, it’s always going to be difficult to distinguish between the parties.
[0] https://www.theguardian.com/news/datablog/2013/jun/28/austra...
[1] https://www.sbs.com.au/guide/article/2021/09/09/australias-f...
If you are not satisfied with either party you still need to vote. Even if you vote for a minor party you know many who aren't as engaged in politics will vote for one of the two majors anyway on relative, not absolute basis limiting the power of your "politically engaged" vote.
That's my impression of Australia's politics. There's no perfect system.
We are also witnessing a significant shift to minor and independent parties, as voters are apparently becoming less affiliated with specific parties over time. Most people I know consider their vote carefully, even if they don’t vote the way I do.
In any case, while the Australian system is far from perfect, it does lend greater legitimacy to the incumbent government, and has the effect that if the government you personally voted for does something you don’t like, next time you’re more likely to vote differently.