  As a paradigm of weak ergodicity breaking in disorder-free nonintegrable
models, quantum many-body scars (QMBS) can offer deep insights into the
thermalization dynamics of gauge theories. Having been first discovered in a
spin-$1/2$ quantum link formulation of the Schwinger model, it is a fundamental
question as to whether QMBS persist for $S>1/2$ since such theories converge to
the lattice Schwinger model in the large-$S$ limit, which is the appropriate
version of lattice QED in one spatial dimension. In this work, we address this
question by exploring QMBS in spin-$S$ $\mathrm{U}(1)$ quantum link models
(QLMs) with staggered fermions. We find that QMBS persist at $S>1/2$, with the
resonant scarring regime, which occurs for a zero-mass quench, arising from
simple high-energy gauge-invariant initial states. We furthermore find evidence
of detuned scarring regimes, which occur for finite-mass quenches starting in
the physical vacua and the charge-proliferated state. Our results conclusively
show that QMBS exist in a wide class of lattice gauge theories in one spatial
dimension represented by spin-$S$ QLMs coupled to dynamical fermions.
