Concentrated internship, I don't know what arts and sciences are like. I used to know that both headquarters and higher vocational colleges were looking for places at will. For example, students majoring in business are likely to be placed in supermarkets or restaurants for internships, and it seems that half of their salary comes from schools.
The decentralized (independent) internship is up to you, and you can go wherever you want. But you have to hand in an internship log or something.
If I can choose, I will still choose to go to the centralized internship.