Do not treat the terms as interchangeable. The model instructions determine whether manual defrosting is required and which surfaces the owner may clean.
What the observation tells you
A marketing name can describe reduced frost without promising that no maintenance is needed. Applying a frost-free procedure to a different design can leave ice untreated, while unnecessary dismantling can damage either type. The cabinet's outward appearance is not a reliable identifier.
A useful next step
Find the complete model and read its defrost section. Plan food storage before any shutdown. Use only the prescribed method and keep tools away from concealed cooling surfaces.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.