  The Be X-ray binary EXO 2030+375 went through its third recorded giant
outburst from June 2021 to early 2022. We present the results of both spectral
and timing analysis based on NICER monitoring, covering the 2-10 keV flux range
from 20 to 310 mCrab. Dense monitoring with observations carried out about
every second day and a total exposure time of 160 ks allowed us to closely
track the source evolution over the outburst. Changes in spectral shape and
pulse profiles showed a stable luminosity dependence during the rise and
decline. The same type of dependence has been seen in past outbursts. The pulse
profile is characterized by several distinct peaks and dips. The profiles show
a clear dependence on luminosity with a stark transition at a luminosity of
2x10^36 erg/s, indicating a change in the emission pattern. Using relativistic
ray-tracing, we demonstrate how anisotropic beaming of emission from an
accretion channel with constant geometrical configuration can give rise to the
observed pulse profiles over a range of luminosities.
