The relationship cannot be inferred from the split ratio alone. Use the freezer's specified fresh-food capacity and the appliance's operating instructions.
What the observation tells you
Two models with similar proportions can have different performance and control arrangements. A larger fridge area also does not authorise packing every freezer gap tightly. The rated freezing task has conditions that may include a mode and loading position.
A useful next step
Check the exact specification when planning batch freezing. If the household routine has changed, compare the new load with those limits instead of assuming a fault from the cabinet's appearance.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.