  This work explores various manifestations of bumblebee gravity within the
metric-affine formalism. We investigate the impact of the Lorentz violation
parameter, denoted as $X$, on the modification of the Hawking temperature. Our
calculations reveal that as $X$ increases, the values of the Hawking
temperature attenuate. To examine the behavior of massless scalar
perturbations, specifically the quasinormal modes, we employ the WKB method.
The transmission and reflection coefficients are determined through our
calculations. The outcomes indicate that a stronger Lorentz-violating parameter
results in slower damping oscillations of gravitational waves. To comprehend
the influence of the quasinormal spectrum on time-dependent scattering
phenomena, we present a detailed analysis of scalar perturbations in the
time-domain solution. Additionally, we conduct an investigation on shadows,
revealing that larger values of $X$ correspond to larger shadow radii.
Furthermore, we constrain the magnitude of the shadow radii using the EHT
horizon-scale image of $Sgr A^*$. Finally, we calculate both the time delay and
the deflection angle.
