This report shows efforts to validate quantum gravity is operating in the universe. "The hope is to eventually have a theory of quantum gravity that supersedes both relativity and quantum mechanics. Exotic compact objects, which would be like a black hole but lack an event horizon, could help provide the necessary information to start constructing this future theory. "
It will take more testing to confirm from the report. Also gravity measurements today are no where near the quantum gravity scale where apparently 3D space becomes a quantum foam too.
The smallest-scale measurements of gravity ever made show that a tiny gold ball weighing 90 milligrams can move another gold ball just a few nanometres through gravitational pull
www.newscientist.com
Without quantum gravity, cosmology has GR singularity for the origin of the universe