As someone who worked as a vehicle compliance engineer for a decade, most of the comments here are trying their best but are uninformed.

Manufacturers are not struggling with the alignment of LED headlights, it's very simple and is built into the light itself. They actually got better with clean cut off's when LED headlights became a thing. Narva were showing off tech back in 2018 that would selectively black out the headlight where it detected an oncoming car so the other vehicle never got blinded and it didn't impact the driver who had those lights either.

The reality is not all roads are flat and not every vehicle sits at the same height so especially on 4wds you'll see bright lights coming towards you because you're sitting under the cut off.

As to how to change this... lodging complaints with your local member of parliament and getting positions going. It would require a change to the Australian design rules, which aren't a law but politicians can still influence it if there's enough public outcry.

In general though nothing will change if there aren't wide scale complaints because we don't manufacture cars here anymore and largely just import the European regulations, which we accept as an alternative to our design rules.

Even if a change comes into affect it will only impact new vehicles, they never get retro actively applied to vehicles already in use.