Researchers have conducted a comparative assessment of various germanium-based spin-qubit modalities, including donor, acceptor, gate-defined hole, and gate-defined electron platforms. Germanium has emerged as a promising semiconductor material for spin-based quantum information processing due to its high purity, mature materials processing, and strong spin-orbit coupling. The study examines the distinct characteristics of each modality, highlighting their potential advantages and limitations. Donor spin qubits, for instance, offer long coherence times, while gate-defined electron qubits provide greater scalability. This research aims to inform the development of quantum computing technologies, particularly in the context of post-quantum cryptography1. As quantum computing advancements accelerate, the need for proactive planning and migration to quantum-resistant cryptographic systems becomes increasingly urgent, making this study a crucial contribution to the field. The findings of this assessment will likely influence the direction of quantum computing research and the development of practical quantum technologies.