  Competing phenomena in low dimensional systems can generate exotic electronic
phases, either through symmetry breaking or a non-trivial topology. In
two-dimensional (2D) systems, the interplay between superfluidity, disorder and
repulsive interactions is especially fruitful in this respect although both the
exact nature of the phases and the microscopic processes at play are still open
questions. In particular, in 2D, once superconductivity is destroyed by
disorder, an insulating ground state is expected to emerge, as a result of a
direct superconductor-to-insulator quantum phase transition. In such systems,
no metallic state is theoretically expected to survive to the slightest
disorder. Here we map out the phase diagram of amorphous NbSi thin films as
functions of disorder and film thickness, with two metallic phases in between
the superconducting and insulating ones. These two dissipative states, defined
by a resistance which extrapolates to a finite value in the zero temperature
limit, each bear a specific dependence on disorder. We argue that they
originate from an inhomogeneous destruction of superconductivity, even if the
system is morphologically homogeneous. Our results suggest that superconducting
fluctuations can favor metallic states that would not otherwise exist.
