There is a discrepancy in this article regarding the claim that only RTX 4090's were caught in the crossfire of the 12VHPWR connector melting issues, when there were actually quite a few 4080's documented that also suffered this same fate.
What's most astounding to me about this whole fiasco is that everyone seems to forget that the 12VHPWR standard was the result of combined efforts from NVIDIA / Intel / AMD and PCI-SIG, of which the latter also had to certify the standard as a safe and worthy alternative to the standard 8 pin connectors everyone knows and has loved for so long before the 12VHPWR standard was ever released to the public. However, while Intel hasn't bothered getting into the middle of the whole drama surrounding the new connector I find it comical that AMD tried to use the reported cases of the connector melting as marketing material to push RDNA3 sales when they were involved in the design of the connector which is a really slimy move on their part.
From my personal account, as a launch day RTX 4090 owner using a 2x8 pin direct to PSU to 12VHPWR connector I've had no issues myself in 12V voltage dropping over time or any melting on the connector leads to speak of after checking just last month when upgrading other components in my build, take from that what you will.