I What approaches to quantum gravity are QFT's?

Nickyv2423
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What are the different approaches to solving quantum gravity that are in the framework of quantum field theory?
 
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As I recall the original attempt to quantize gravity within QFT ran into trouble as it was shown to be non-renormalizable. Beyond that the "Quantum Gravity" wikipedia article has a pretty good survey of the basic directions of research and a bit more on the non-renormalizability issue.
 
I seem to notice a buildup of papers like this: Detecting single gravitons with quantum sensing. (OK, old one.) Toward graviton detection via photon-graviton quantum state conversion Is this akin to “we’re soon gonna put string theory to the test”, or are these legit? Mind, I’m not expecting anyone to read the papers and explain them to me, but if one of you educated people already have an opinion I’d like to hear it. If not please ignore me. EDIT: I strongly suspect it’s bunk but...

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