  Powerful outflows from active galactic nuclei (AGN) can significantly impact
the gas reservoirs of their host galaxies. However, it is still unclear how
these outflows can propagate from the very central regions of galaxies to their
outskirts, and whether nuclear winds can be driven by and/or be responsible for
drastic spectral transitions. In this work we test feedback propagation models
on the case test of 2MASS 0918+2117 (2M0918), a z=0.149 X-ray variable AGN,
which showed tentative evidence for nuclear ultra-fast outflows (UFOs) in a
2005 XMM-Newton observation. We also investigate whether UFOs can be related to
the observed X-ray variability. We observed 2M0918 with XMM-Newton and NuSTAR
in 2020 to confirm the presence and characterize the UFOs. We perform a
kinematic analysis of the 2005 SDSS optical spectrum to reveal and measure the
properties of galaxy-scale ionized outflows. Furthermore, we construct
20-year-long lightcurves of observed flux, line-of-sight column density, and
intrinsic accretion rate from the spectra of the first 4 SRG/eROSITA all-sky
surveys and archival observations from Chandra and XMM-Newton.We significantly
detect UFOs with v$\sim$0.16c and galaxy-scale ionized outflows with velocities
of $\sim$ 700 km/s. We also find that the drastic X-ray variability (factors
>10) can be explained both in terms of variable obscuration and variable
intrinsic luminosity.Comparing the energetics of the two outflow phases, 2M0918
is consistent with momentum-driven wind propagation. 2M0918 expands the sample
of AGN with both UFOs and ionized gas winds from 5 to 6, and brings the sample
of AGN hosting multiscale outflows to 19, contributing to a clearer picture of
feedback physics. From the variations in accretion rate, column density, and
ionization level of the obscurer, we propose a scenario that connects
obscurers, an accretion enhancement, and the emergence of UFOs
