In my 10 years here I've seen them split them make it difficult for foreigners to buy existing houses, but easy to buy off-plan https://treasury.gov.au/sites/default/files/2019-03/Stronger...
I've seen them restrict the amount of money retirement plans can use to invest in equities, promoting the use of more funds going to real estate (this was my understanding of the changes) - https://en.wikipedia.org/wiki/Superannuation_in_Australia
And now including your housing as part of your superannuation, which I wasn't aware of.
Every time I think they've run out of levers to pull, they find another one.
When I arrived here in 2011, I thought real estate was cheap compared to rents, that equation has completely flipped.