The Ashes series win against England
A little correction. Australia did not win the Ashes in 2023. They just retained the trophy because the previous winner was Australia already. The Ashes series of 2023 was drawn. But, according to the Ashes rules, the previous series winner retained the trophy. I remember that England had terrible luck during the series. England could have won the 4th match but rain washed out the match.
Back to the main point. Australia played awesome in the last years but they did not play well against India right before the World Cup. Even they lost the first match against India in the group stage. But they have won the World Cup from there.