There is a country where I have never lived (long term). I have bought a house there, have never lived in the house, but I rent it out. I go there few times a year for a period of 3-7 days and live there as a traveler (hotel stay, takeaway food etc). Do I have to pray my namaaz as qasr or as normal?

You will continue to pray Qasr until you decide to make it your home