Australia playing at home in the quarter finals against France isn’t really going to help them bag the win. France is the better team of the two and would go ahead to bag the victory. I too don’t see them matching the strength and capabilities of the French as France plays better football than Australia and is predicted to win.
I’m not trying to underestimate Australia cause we’ve seen countless times in football where the underdogs would go ahead to win against a superior opponent. In this case, France is in my opinion, the stronger team and it would take more than playing at home for Australia to win the game.
Should be a tough game for France indeed, going against the cohost in a knockout out phase, however Australia I don't see to be much of a huge threat in my opinion, and France would win this game anyways, I reckon.
France seemed to have found their team chemistry at the best time just before the end of the group stage, and they tend to be scoring goals at will now, and the same thing can be said of the Australian team, a team you'd expect to be of a tougher opponent that the French team last two opponent being Panama and Morocco, while Australia have face tougher, but France surely would be their toughest yet.
The bookies still have it on quite a close odds for both sides, ~3.50 for Australian and ~2.20 for France to win the game in regular time, I'd likely have my money on France, as the odds seem rather of decent value imo.