After watching Inter this season I think the other teams will really need to make a huge progress this summer. 
Because the gap is just enormous now. Maybe you will say Napoli were also like this in the prior season and failed later on. However Spalletti left the team which caused big problems to start for Napoli right after.
There isn't such thing for Inter. They are moving on with Simone Inzaghi. I believe they have the best squad in the league at the same time. In this situation it wouldn't be seeing them winning a back-to-back title unless we see some reaction from another team.
Inter Milan has built a better squad where under the guidance of Simone Inzaghi Inter Milan has succeeded in winning the Scudetto and also managed to reach the Champions League final in the 2023 season. Maybe that's just your perception because I think Inter Milan will be able to maintain their best quality to become champion consecutively or for the second time. Because the gap is just enormous now. Maybe you will say Napoli were also like this in the prior season and failed later on. However Spalletti left the team which caused big problems to start for Napoli right after.There isn't such thing for Inter. They are moving on with Simone Inzaghi. I believe they have the best squad in the league at the same time. In this situation it wouldn't be seeing them winning a back-to-back title unless we see some reaction from another team.
It will be difficult for other teams to stop Inter Milan progress because Inter Milan forces are quite well organized under the guidance of Simone Inzaghi. However, it could be that AC Milan is the closest rival that will be able to provide obstacles for Inter Milan, even though it seems like it will be quite difficult because AC Milan has lost many star players because their contracts have ended this season.