Lewandowski and Salah are top priorities of clubs in Saudi Arabia. After having three big star players, Ronaldo, Benzema and Neymar, they are targeting younger players like Salah. They failed in this summer but I believe they will return to Europe with other offers in next transfer. If their plan is for World Cup 2030, they will continue to spend money to improve quality of their league with hope that it will help their local players to learn from those legendary players then increasing quality and competitiveness of their national team.
As I said in another post, Lewandowski stated that he had received a big offer from one of the Suadi clubs. However, he said on that occasion that he rejected it and wanted to stay with Barcelona. I don't know why Lewandowski is really attracted to this giant Spanish club, he has also said on several occasions that he is not interested in moving to another club and will probably end his career at Camp Nou. as a Barcelona fan, I was very happy to hear what was said Lewandowski. although, when the time comes, Lewandowski could change his decision and accept an offer from one of the giant Saudi clubs. Despite all that, I'm still happy wherever he goes to change clubs.
However, there are several other names that are still being targeted by Saudi clubs in the coming season or winter transfer window. I suspect Mo Salah will leave for Al Ittihad, maybe in the winter window, or next season. and Liverpool will let him go. However, in the previous transfer window, this would not be realized. because Klopp still really needs his services.
Next there will be many more newcomers who will leave for the Saudi Pro League, I think they still have the ambition to enliven this League to become a concern in the eyes of the international world.