According to reporter David Gluzman, Paris Saint-Germain never intended to retain Donaruma, which is evident from the fact that they provide Italians with much lower salaries than other players.
Although Donnarumma is already the 8th highest-paid player in Paris Saint-Germain, the club has obviously made a choice at the competitive level. In fact, Paris Saint-Germain just needs to acknowledge this earlier and then ensure a smooth transition.
source:7m vn1