Is it still March 2022 in Australia?
I'm unsure of your news source but NATO itself cannot do anything, no member state has been attacked and it is a defensive alliance.
USA and most of it's NATO partners are doing a hell of a lot, UK included (and even Australia).
China are not sabre rattling at all, in fact if you listen to what has gone on behind the scenes via back channels, it is supposedly China that has told Putin in no uncertain terms that Nukes are off the table
The Western countries apart from a select few are solidly behind Ukraine. Even France appeared to be pulling in the right direction until Macron went into Dickhead mode again the other day.
Understand this, There will be no WW3 out of the Ukraine War, there will be no nukes used. Russia will eventually lose. Russia does not have limitless supplies of war machinery and an awful lot of it is spent, hell they've even killed most of the battle hardened troops they had
If China is watching this with interest in regards to a response from the west, they will not be planning to attack Taiwan anytime soon. Taiwan has better weapons than Ukraine, it already has Patriots for example. CHina will also see that "The West" has thrown an awful lot of ordnance, training, advice and intelligence Ukraine's way and will be just as likely to do that to Taiwan. China will also note how shite Russia's equipment is as China has actually bought some of it. Oh and China doesn't have any battle hardened troops in the first place, the last time they fought any kind of meaningful land battle was 1984