In traditional refrigerator designs, the freezer is typically located above or below the refrigerator compartment, but it's not common to find a refrigerator with the freezer below the fridge. The reason for this is related to the way these refrigerators are designed and how they function.
Refrigerators work by transferring heat from the inside of the compartments (both fridge and freezer) to the outside. The freezer needs to be colder than the fridge, so it requires more energy to maintain a lower temperature. Placing the freezer below the fridge would make it harder for the freezer to maintain its required low temperature because heat rises, making it less energy-efficient.
As a result, the standard refrigerator configuration has the freezer on top or at the bottom of the fridge. Top freezer refrigerators are more common and have been the traditional design for many years, while bottom freezer refrigerators have become increasingly popular in recent times, offering easier access to the main fridge compartment.
If you are looking for a refrigerator with the freezer below the fridge, you might be able to find some specialized models, but they are not as commonly available as top or bottom freezer configurations.