would it be constrained by laws and norms elsewhere?)
Section 3.1 gives an overview of the COVID-19 and smart city systems situation in South Korea, but is not part of the novel contribution by the authors. I would thus include it in Section 2 instead. Section 2 would thus have a part on smart city services, a part on COVID-19 response plans, and then the current content of 3.1 which deals with the relationship between the two parts of the current Section 2. It would allow a smoother transition between Section 2 and Section 3, as the modified Section 2 would conclude with the need for a novel smart city service structure.