So shortly after 15:00 we are on the way to Punta Arenas. So we should be shortly before 17:00 in Punta Arenas. That allowed us to have more time to go through immigration to Chile. We had to get our checked-in luggage and go through custom. After that, I had to go to the Latam check-in desk to check-in my luggage, then go through security.
With additional 2 hours I had time to have a dinner, since on the Latam flight, you didn't got much.