Keep careful watch of problems in the future: the oxidation issue for the 13th gen is a physical defect not fixable by the microcode update, but we don't know how widespread it is yet (and Intel is keeping mum). If possible, it might well be worth returning and getting a 14th gen chip, which doesn't suffer from the latter problem and the former will be fixed by microcode.

Realistically there’s no way to tell if you have an affected unit or not (Intel hasn't provided any information that would help). Nor is there any guarantee that the microcode update will prevent future issues. It appears that there is both microcode and manufacturing issues at play here.

Or do you need to go through every obscure voltage setting and bring it down? Will even that be obeyed?

* which has no connection to the real TDP but at least it will tell the CPU ... something ...