  We determine generalized symmetries for 4D theories engineered via type II
strings on non-supersymmetric orbifold backgrounds $\mathbb{R}^{3,1} \times
\mathbb{R}^6 / \Gamma$. Probe branes detect generalized symmetries via the
adjacency matrix for fermionic degrees of freedom in an associated quiver gauge
theory. In situations where the tachyons are sequestered away from the boundary
$S^5 / \Gamma$, this exactly matches the result extracted from singular
homology. In situations with an unsequestered tachyon which stretches out to
the boundary, the presence of tachyonic pulses partitions up the space into
several distinct sectors, and the net contribution again matches with the
answer expected via quiver methods. For IIA backgrounds, the presence of a
localized closed string tachyon leads to transitions in the spectrum of states,
generalized symmetries, higher-group symmetries, as well as the level matrix of
the associated symmetry topological field theory (SymTFT). For IIB backgrounds
with a stack of spacetime filling probe D3-branes, the onset of a radiatively
generated potential leads to similar considerations involving scale dependent
transitions in the symmetries of the theory, including structures such as
duality defects / interfaces.
