[joeberon]

Generally in Physics we eventually reach some kind of consensus on the most accurate theory, however as far as I can tell there are multiple competing theories of Quantum Gravity. Similar to how the interpretation of QM is unsolved because we haven't significantly justified a specific interpretation yet.

By "the wider Physics community" I mean Physicists in general having a general sense that the problem has been solved, for example a solid state physicist has some idea that the Standard Model is our most accurate theory of the three interactions it covers, even if they know nothing about the Standard Model. Eventually a theory of Quantum Gravity will reach that kind of recognition if we have some kind of experimental evidence or strong theoretical arguments regarding it. It is a question of marketing and broadcasting