Cloud-Native 6G: A Multi-Domain Perspective

6G networks are envisioned to provide ubiquitous connectivity, pervasive intelligence, and sustainable operation. Realizing this vision requires not only advanced transmission techniques but also architectural innovations capable of handling unprecedented heterogeneity and dynamics. The cloud-native paradigm, emphasizing modularity, elasticity, and automation, offers a solid foundation to reimagine the design and operation of future networks. In view of this, this article presents a multi-domain perspective on cloud-native 6G. We first outline the architecture and fundamental characteristics that distinguish cloud-native 6G from previous generations, and then examine its feasibility across the radio access, transport, core, and non-terrestrial network domains. Finally, a case study on cross-orbit microservice orchestration using multi-agent reinforcement learning illustrates how cloud-native design enables efficient and balanced service management in the non-terrestrial domain.