The fun we find in the seria A in the unpredictability of the winners of the title from the beginning of the season is usually not same as in the French Ligue 1so I do not even see any comparison whatsoever, the seria A is more dynamic than the Ligue 1 but at a point the Seria A had that farmers league look as the French Ligue 1 and that was before the arrival of Osimhen to Napoli who helped them get their first trophy after a long while and broke the mentality that got them challenging and now the league feels more competitive than it has been in a long time.
That is why Serie A is now more amazing than Ligue 1, because of the competition and the pressure in the league. I will also say that Osimhen is one of the reasons that Napoli became stronger. Now, they are still performing at their best even without his presence in the team. Even though we all know that their performance became poor after he left the team, the previous season was somehow harsh on them, and they were not able to do anything.
In terms of competitiveness I agree with you that the Italian seria A is more competitive than the league 1 because the French ligue 1 has been turned into a one man show with only one team dominating and others are just trying to get to Europe but I don't agree with you that oshimen was the reason why napoli is stronger if oshimen was the reason why did napoli win the league after the departure of oshimen napoli has built a team that is working well for them