Hmmm, I think this is unlikely. For one thing, most people's power supplies are quite wildly overspecced in gaming rigs since its genuinely pretty hard to find

Hmmm, I think this is unlikely. For one thing, most people's power supplies are quite wildly overspecced in gaming rigs since its genuinely pretty hard to find good small ATX PSUs these days. For another, even crummy low-quality PSUs tend to mostly work pretty well for a reasonably long time in most cases, so it'd be weird to see this so much in high-end gaming rigs with brand new CPUs. I also don't know exactly what failure mode you are suggesting with this (voltage rail out of spec?) but I think unless it starts feeding too much voltage into the CPU it is probably unlikely to be able to cause damage. (Instability, sure.) It also doesn't explain why Intel's 12th generation CPUs are still running strong, along with most of AMD's lineup, by comparison. Don't get me wrong, every SKU of CPU has its issues, but all of the major issues with other CPU lines we have explanations for; the issues with Intel Raptor Lake are thusfar unexplained. Intel has blamed motherboard manufacturers quite extensively, but so far the evidence of this is pretty uncompelling, because the failures can apparently also be seen in abnormally high numbers on motherboards that never had unreasonable configurations.