  Quantum gravitational corrections to the entropy of the Schwarzschild black
hole, derived using the Wald entropy formula within an effective field theory
framework, were presented in [X. Calmet, F. Kuipers Phys.Rev.D 104 (2021) 6,
066012]. These corrections result in a Schwarzschild spacetime that is deformed
by the quantum correction. However, it is observed that the proposed
quantum-corrected metric describes not a black hole but a wormhole.
Nevertheless, further expansion of the metric function in terms of the quantum
correction parameter yields a well-defined black hole metric whose geometry
closely resembles that of a wormhole. We also explore methods for
distinguishing between these quantum-corrected spacetimes based on the
quasinormal frequencies they emit.
