A thinner portion has less distance from its surface to its centre and is easier to portion later. Suitable packaging and safe initial cooling still matter.
What the observation tells you
Freezing a large deep container can make later thawing uneven and force you to defrost more food than needed. Flattening is not permission to use a bag unsuitable for food or to block an internal air outlet. Liquids also need appropriate expansion space.
A useful next step
Divide food into useful portions using freezer-suitable containers and follow the food's instructions. Label the contents and date before loading, while the writing surface is easy to handle.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.