  Using angle-resolved photoemission spectroscopy (ARPES) and density
functional theory (DFT) calculations, we systematically studied the electronic
band structure of Mn$_3$Ge in the vicinity of the Fermi level. We observe
several bands crossing the Fermi level, confirming the metallic nature of the
studied system. We further observe several flat bands along various high
symmetry directions, consistent with the DFT calculations. The calculated
partial density of states (PDOS) suggests a dominant Mn $3d$ orbital
contribution to the total valence band DOS. With the help of orbital-resolved
band structure calculations, we qualitatively identify the orbital information
of the experimentally obtained band dispersions. Out-of-plane electronic band
dispersions are explored by measuring the ARPES data at various photon
energies. Importantly, our study suggests relatively weaker electronic
correlations in Mn$_3$Ge compared to Mn$_3$Sn.
