Metallic glasses exhibit exceptional properties but suffer from shear banding at room temperature. Homogeneous deformation at high temperatures is vital for understanding amorphous plasticity. This review summarizes recent advances in atomic-scale flow mechanisms, highlighting shear transformation zones, defects, and hierarchical relaxations. We discuss free volume kinetics, stress-temperature equivalence, and rejuvenation threshold stress. Role of structural heterogeneity in flow stability is examined, alongside modern characterization and modeling techniques. The review concludes with a roadmap for designing ductile glasses using these insights.