  We present a set of generalized quantum loop models which provably exhibit
topologically stable ergodicity breaking. These results hold for both periodic
and open boundary conditions, and derive from a one-form symmetry (notably not
being restricted to sectors of extremal one-form charge). We identify simple
models in which this one-form symmetry can be emergent, giving rise to the
aforementioned ergodicity breaking as an exponentially long-lived prethermal
phenomenon. We unveil a web of dualities that connects these models, in certain
limits, to models that have previously been discussed in the literature. We
also identify nonlocal conserved quantities in such models that correspond to a
pattern of system-spanning domain walls, and which are robust to the addition
of arbitrary $k$-local perturbations.
