Heck I'm also sure Juventus will not stay so long on the table but for now, Max Allegri has done well to push the lads to this particular position. They have a wide range of attacking players. Dusan Vlahovic gradually chasing Lautaro Martinez for the hunt for the highest goals scored.
I agree with you, Juventus can only be there for a week then after Inter Milan play their 21st match they will take over the top of the standings. Indeed, it will not be an easy match for Inter Milan but we know they will play as hard as possible I guess at least Inter Milan will get one point. Apart from that, Fiorentina is also not confident because they played badly in the last 2 matches, apart from that Inter Milan will soon face a decisive match against Juventus we can't predict who will win but Inter Milan has the advantage of playing as host.
This moment Inter have another schedule because ya, Inter are still busy playing in the Super Cup and today Inter will play in the Super Cup final match against Napoli. Therefore, Inter still have one match postponed in Serie A and thus, ofcourse, Juventus position will still be very likely to be taken over by Inter because ya, the factor of having one match postponed will make Inter still have a chance to return to the top position of Serie A. But even so, that does not mean Juventus lost the chance to get the Scudetto because ya, after all, this season Juventus still have the chance to continue to compete with Inter in the race for the Scudetto.