Just about every Muslim in Hindustan that's been surveyed in genetic studies has been shown to have slightly higher quantities of Eurasian ancestry than their non-Muslim neighbours.
For Pakistanis it would almost certainly be the same, in fact, we probably have even more ancestry from these Muslim conquerors since we were at the forefront of their invasions:
Anyway, even if one did not have ancestry from these foreign conquerors, we still have had many prominent local Pakistanis fight as part of these Islamic invasions, such as Sikander Shah Mir (a Kashmiri Sultan), Sarang Khan (a Punjabi Sultan who helped Babur), Shahbaz Khan (a Punjabi general in Akbar's army), Ali Sher Rai (A Gilgit-Baltistani Sultan), and I don't think I even need to get into the sheer amount of famous Pashtuns during these Islamic conquests. You had these Islamic army's hire local Pakistanis as regular soldiers too, e.g Muhammad Bin Qasim had many Sindhis and Baluchis in his army, Mahmud Ghaznavi had many Punjabis and Pashtuns in his army, etc.