Current freezer is frost free, a real treat.
It wasn’t hard to defrost the previous upright freezer, just not the most fun job. We didn’t let ice build too much. On a cool day the baskets of food were removed, stacked and covered in blankets. Our Dyson heater was positioned in front to blow in hot air. Any stubborn bits were scraped with a plastic blade, a wipe and dry next then the food back, all in less than an hour. The hardest bit was remembering what it was that fitted under the spout to catch the water.
Years ago we had a chest freezer and I’m pretty sure it was never defrosted. Oops.