Not necessarily. Weight and bulk describe different aspects of a load. Light, bulky textiles can fill the available space while still weighing less than the machine's headline kilogram rating.
Understanding this situation
The laundry needs room for the programme's intended movement and water circulation. Compressing bedding or cushions into the drum can prevent that movement even if a scale suggests the weight is acceptable. Conversely, a dense item can be heavy without appearing to occupy much space, so visual filling is not a universal measuring method.
A useful next step
Use the dry-load and volume guidance for the exact programme, and check whether bulky items are permitted at all. When cleaning is uneven, note whether the load moved freely or seemed packed together. Do not use the door or your body weight to squeeze a load into place; reduce it before starting.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.