I have no idea about any specific claims of water shortages. There is always parts of the country in drought like conditions and there is a large portion of the country that would not sustain urban life due to how little water they get. The majority of the country has just come out of a 4 year La Nina which caused massive flooding to many areas as well as multiple flooding events to some areas, but flooding rains doesn't mean it fixes a water shortages.
After 4 years of La Nina anything more than light rain around here just hits the ground and runs away. Those of us on tank water are generally full and those who rely on mains water are generally getting it from dam storage with 80% or more capacity. But that will change dramatically with the oncoming El Nino expected this summer. According to experts we'll run the 2023/24 summer fine in the majority of the country but if we get a second El Nino in 2024/25 more than 65% of the country could be back under drought conditions.
It's a strange old country. Up in Northern Territory winter is the dry season, temps even drop under 30 degrees sometimes. But in the centre where that fucking great big rock is they had a one day rainfall this week that exceeded their entire winter total. Not only that it got cold enough that on Friday morning there was the slight chance that it was actually going to snow on the Rock, (it didn't though).
What would make some of us roo fucking ockers happy was if them weirdos from South Australia all farted at once in a North Eastern direction and blew all the rain clouds up into northern NSW and QLD, because we just don't need it right now.