Some entities are associated with others. For example, a smart bulb in a floor lamp and the socket to which the floor lamp is connected. However, access to these additional entities is rarely needed, but can be useful when interacting with the main device.
Therefore, I think it would be a good idea to add the ability to place cards of these additional related entities in a more-info popup, so as not to clutter the main dashboard space and at the same time have quick access to these entities through the interaction screen with the main device.