Importance of modular design in DDD

It seems like the concept of modular design is favored less than other common concepts in domain driven design by designers and developers.

What are your observations? Is the concept of module and modular design practiced as it should in the teams that you have worked with?

In your opinion why concept of module is faded under the shadow of other concepts like domain, value object, aggregate, service and etc? How this issue may cause damage to domain richness?

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