  Microlensing has a unique advantage for detecting dark objects in the Milky
Way, such as free floating planets, neutron stars, and stellar-mass black
holes. Most microlensing surveys focus towards the Galactic bulge, where higher
stellar density leads to a higher event rate. However, microlensing events in
the Galactic plane are closer, and take place over longer timescales. This
enables a better measurement of the microlensing parallax, which serves as an
independent constraint on the mass of the dark lens. In this work, we
systematically searched for microlensing events in Zwicky Transient Facility
(ZTF) Data Release 17 from 2018--2023 in the Galactic plane region $|b| <
20^\circ$. We find 124 high-confidence microlensing events and 54 possible
events. In the event selection, we use the efficient \texttt{EventFinder}
algorithm to detect microlensing signals, which could be used for large
datasets such as future ZTF data releases or data from the Rubin Observatory
Legacy Survey of Space and Time (LSST). With detection efficiencies of ZTF
fields from catalog-level simulations, we calculate the mean Einstein timescale
to be $\langle t_\mathrm{E}\rangle = 51.7 \pm 3.3$ days, smaller than previous
results of the Galactic plane to within 1.5-$\sigma$. We calculate optical
depths and event rates, which we interpret with caution due to the use of
visual inspection in creating our final sample. With two years of additional
ZTF data in DR17, we have more than doubled the amount of microlensing events
(60) found in the three-year DR5 search and found events with longer Einstein
timescales than before.
