The 25-year-old flattered to deceive at times for United throughout this season, sparkling only intermittently, and reports have suggested that Juve could attempt to buy him back, after selling him for a then world-record fee of £89 million (€101m/$118m) in 2016.
However, Pogba has brushed aside those suggestions, insisting he is solely focused on the World Cup.
"I am with the France squad, I don't want to speak about the future of the club and all this," he told reporters.
Having previously played for Juve, Pogba concedes that he does speak with Paolo Dybala, the club's mercurial striker, but he maintains it means little.
"Yes, I speak with Dybala, but whether I speak to Dybala or speak with (Samuel) Umtiti, who plays at Barcelona, it's not there I will go and play there!"
France were aided by technology against Australia, with VAR awarding them a penalty, and goal-line tech ruling that Pogba's shot crossed the line.
And the midfielder says he and his team-mates were always aware that Bert van Marwijk's team would provide a stern test, though he accepts that Les Bleus will have to improve if they want to go deep into the competition.
"We knew it would be hard as it's a World Cup game," he said.
"We stay positive and only think about the three points we've gathered. We have young and very talented players. Some have already featured in a World Cup, others not. So they need to learn.
"I think that after this game, the ones who didn't know have a pretty good idea of what it's about. It's a very high level. Pressing with pace. We expect a better game from the team next time around, but if we can win all the games by playing like this, we'll take it."