Is it appropriate for me to refund the deposit for a room opened by a friend?

it is not suitable for a room opened by a friend. The deposit paid by a friend should be returned to the friend.

when you check out, give the room card to the hotel front desk, and then the front desk staff will contact the cleaning aunt to check the room to make sure that nothing is damaged, which is usually a cash refund. However, many hotels are free of deposit, such as Hanting and Haiyou, which are under the China Living Association, and are free of charge all season.