The surgeon is the one who most benefits from this technique, because they can easily perform the necessary changes on the nose. Although the patient suffers more swelling, more recovery time, and can be left with a visible scar; without forgetting that the technique has less precision at the time of evaluating the changes that are being performed during the surgery.
On the other hand, the closed or endonasal technique avoids this external incision on the skin and only uses internal incisions to gain access to the structures susceptible to change. The one who most benefits from this technique is the patient, who avoids a scar that can be noticeable on occasions, and who will also have a faster recovery with less swelling.
This closed technique, in expert hands, is the one that offers the best global results, and is the one that I recommend and perform.