Inter managed to get a ruthless win against Frosinone, a team with a high relegation potential. We can say that this win will definitely benefit Udinese. Inter are already champions but they might have done Udinese a favor. Frosinone hadn't lost for 6 weeks and this week they suffered a heavy defeat against Inter. Considering that Frosinone will play Udinese in the last week, we can say that they have become very advantageous. I think Udinese will stay in the league.
Yes, Inter's victory over the Frosinone team certainly opened up opportunities for the Udinese team, because the defeat in that match did not add points to the standings for the Frosinone team so there is still a big chance of being chased by the Udinese team. Moreover, currently the Udinese team is still in the relegation zone so they will definitely take advantage of this momentum to get out of the relegation zone and they are aware that they cannot miss this opportunity so they have to get full points when they compete with the Lecce team.
For me, Lecce is also not a weak team and of course, there is still no guarantee for Udinese to be able to beat Lecce. Therefore, it is still possible that Udinese will fail to get three points in the away match against Lecce. But indeed, if for example Udinese is able to hold a draw Lecce, then a draw is also still a good result for Udinese. Because I think, Udinese's performance at this moment is also not entirely good so there is still no guarantee for Udinese to successfully get out of the relegation zone. Because anyway, in the remaining matches that Frosinone and Udinese have for the rest of the season, at least they both get opponents who are also in the lower zone of the standings. Therefore, the competition of the teams in the lower zone will still happen tightly, and they both still have a chance not to be relegated.