  We investigate the impact of quantum gravity on accretion onto a modified
Schwarzschild black hole within the context of the generalized uncertainty
principle (GUP). The minimal measurable length connected to GUP modifies the
Schwarzschild black hole, giving it the capacity to accommodate the correction
due to quantum gravity. We look at potential critical point locations and
calculate the critical speed of the matter accreting. We determine the
temperature and total integrated flux correction at the event horizon for the
polytropic matter using the least measurable length conjecture offered by the
GUP. We note that quantum gravity has a significant impact on the accretion
process Additionally, the quantum gravity regime also maintains an
asymptotically safe ambiance.
