The manuscript presents a well-structured and logically sound investigation, addressing certain cutting-edge aspects of manganese-based cathode materials for aqueous zinc-ion batteries. The authors' perspectives demonstrate a valuable understanding of the field, contributing insights with general relevance to the research community. However, several issues require revision and clarification. The work is deemed publishable subject to adequate resolution of these concerns.

1. The supporting information for this manuscript is inaccessible. The authors are requested to check and re-upload the file.
2. The authors propose that the doping of Fe and Zn leads to the formation of defect vacancies. Please provide Electron Paramagnetic Resonance (EPR) data to substantiate this theoretical claim.
3. Regarding the use of Zn, Fe co-doped δ-MnO2 in this study, how was the optimal doping ratio determined and validated?
4. The authors claim that the lattice fringe in Figure 1(g) is significantly larger than the corresponding lattice fringe observed in δ-MnO2. However, the lattice spacing for the δ-MnO2 (001) plane is not provided. Please supply the relevant data.
5. Please provide the full XPS survey spectra to facilitate readers' understanding of the elemental distribution in the different materials.
6. As "AOS" is used as a abbreviation, no definition or full name was provided for it in the first instance in this article. Please provide explanations for its definition and calculation method.
7. For Figure 3(a), only the CV curves for FZMO and MO are provided. Given the subsequent comparative analysis of FMO and ZMO, please include the CV curves for FMO and ZMO for a comprehensive comparison and discussion.
8. Figure 3(e) does not specify which cycle the specific capacity corresponds to. Furthermore, the contribution rate of zinc ion intercalation lacks explanation and a description of the calculation method. Please clarify and detail the data acquisition process.
9. Please supplement the long-term cycling performance of FMO and ZMO at 1 A g⁻¹ for comparative analysis.
10. What is meant by "Original state" in Figure 5(c)? If it refers to the pristine electrode, Zn should not be present. Please verify the authenticity of this data.