  We revisit the N=6 superconformal Chern-Simons-matter theories and their
supergravity duals in the context of generalized symmetries. This allows us to
finally clarify how the $SU(N)\times SU(N)$ and $(SU(N)\times
SU(N))/\mathbb{Z}_N$ theories, as well as other quotient theories that have
recently been discussed, fit into the holographic framework. It also resolves a
long standing puzzle regarding the di-baryon operator in the $U(N)\times U(N)$
theory.
