Yes, the rules are constantly changing and it's hard to keep track of these changes.

My advise, go to a few (not one) agent - get their advise specific to your situation and circumstances (esp the industry you are in).

Talk to family and friends who are already in Aus, better still if you have people whom you know who are in the same industry.

Pay a visit (holiday) for a couple of weeks to the place you intend to settle in - see if you like the people, culture, weather, etc (bearing in mind that there is a different being a tourist vs resident).

Ensure that you have enough buffer to come across. Decide if you want to go all in (i.e. sell off your house and move the whole family across) or keep one-leg still in Malaysia just in case you'd really don't like it.

Pray (if you are religious) about the move.

And then - take that leap of faith!

Good luck