I'm saying there is no concrete data, there is plenty of indicative data if you go looking for it and/or have access to it.
Here for example is Mindfactory's "complaint rates" which are indicative of return rates, for recent months for a bunch of relevant CPUs:
14600K - 0.57%
14700K - 1.01%
14900 series - 1.92-3.61%
14900KS - 7.53%
7800X3D - 0.44%
9700X - 0.62% (probably too early to be accurate)
7700 series - 0.57-1.1%
7900 series - 0.73-0.93%
7950 series - 1.25-2.30%
I've separated the KS as you often get people returning a bunch of these trying to find a "golden" chip so high complaint rates on those parts aren't unusual.
EDIT: I can't reproduce any data from work as I don't have authorisation to do so.
EDIT2: 13th gen parts similarly have 1-2% rates. Their ~3% average on the 14900 is also consistent with what I've heard from friends in IT who manage large numbers of 14900 systems in tasks like using Unreal Engine for rendering stuff for advertising work, etc.
Can we see your data now.