  In this study, we probe the weak lensing by a Reissner--Nordstr\"{o}m black
hole corrected by bounce parameter in plasma and dark matter mediums. For this,
the optical geometry and the Gibbons--Werner approach are utilized to obtain
the bending angle in the weak field limitations. We examine that the impact of
these mediums increases the black hole's bending angle. In addition, we
graphically study the deflection angle of light with respect to the impact
parameter and examine that the bounce parameter directly affects the angle.
Further, we compute the Hawking radiation via a topological method involving
two invariants and verify our obtained result with the standard method of
calculating the Hawking temperature. In addition, we compute the greybody
factor's bound of the black hole. Moreover, we analyze the bound graphically
and observe that the bound shows convergent behavior. We also study that our
attained results reduce the results of the Reissner--Nordstr\"{o}m and
Schwarzschild black holes by reducing the parameters. Finally, we probe how the
bounce parameter affected the shadow radius and compared it to the shadow
produced if the black hole is immersed in plasma. It is revealed that the rate
at which the shadow radius changes with respect to $r$ easily tends to zero
under the effect of the bounce parameter, while the plasma merely increases the
shadow radius.
