An empty-cabinet result does not reproduce normal loading, door use or circulation around food. It can be one observation, but it should not be presented as proof of performance under every household condition.
What the observation tells you
Removing all contents changes how much cold material is inside and removes possible vent obstructions. The thermometer may also be in a different position. Conversely, filling the fridge with warm objects to create a test adds unnecessary demand and can confuse the result. A repair account is stronger when it describes normal use accurately rather than an artificial challenge.
A useful next step
Explain whether the reading came from an empty appliance, a normal load or recent shopping. Follow the manufacturer's prescribed checks if there is a restart procedure. Keep food appropriately stored until reliable conditions are established, and report any persistent difference between normal use and the empty-cabinet observation.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.