Letting Lautaro Martinez go to the Arab Pro League certainly isn't a good option, but if that's an option Inter needs to consider then they could sell him too. Lautaro Martinez, of course, still really wants to stay in Europe because he feels he can still compete in the top-flight competition at the moment, this will also support him being called up to the national team because of his performance.
It is impossible for Inter Milan to sell Lautaro Martínez. He is the best striker in Inter Milan, they will keep him as long as possible. Moreover, he still has 3 years contract duration in Inter Milan, it expires in 2026. So, there is no reason for Lautaro Martínez to leave Inter Milan now. He also shouldn't be interested in moving to Saudi Pro League, it is not a top league in the world. Even if Lautaro Martínez has the intention to leave, he must prefer to move to La Liga or EPL. Real Madrid and Barcelona must be interested in him, the top clubs in EPL also want to sign him if he has an issue to leave Inter. But so far, I don't hear any issue that Lautaro Martínez really wants to leave.
Issues that are developing clearly will not become a reality if they are only limited to issues of interest from the Saudi Arabian league team. In an attempt by the Saudi Arabian league team to bring in Europe's top players, they exercised the option of offering multiple salaries to attract the player's interest. But we see that several players have also rejected their offers because they are still focusing their careers on the European leagues and of course in the highest competition.
Seeing Lautaro Martinez, of course he is in good harmony with Inter Milan, so he is definitely very comfortable at Inter Milan until his contract ends. On the one hand, Martinez has also been very integrated with Inter Milan players in the previous season. Now, seeing the strategy carried out by Inter Milan in this transfer window, of course management has brought in an ideal duel for Martinez next season. Joining Thuram with Inter Milan in this transfer window makes Inter Milan front line even stronger next season and they are even one of the candidates to win the Scudetto trophy.