The cryptosystems the article says are too big to use, Kyber and Dilithium, are both lattice-based.
A solution to this problem may also be lattice-based: SQISign is mentioned, though that is too slow. Or it may be something else: Unbalanced Oil and Vineger, and Mayo, are not lattice-based.
A solution to this problem may also be lattice-based: SQISign is mentioned, though that is too slow. Or it may be something else: Unbalanced Oil and Vineger, and Mayo, are not lattice-based.