It's very interesting because my 13900K has worked like a dream from day one and still to this day. Never had any of the voltage issues, never had any abnormal crashes in Firefox or any other software. I was undervolting it for a long while, so I wonder if somehow that saved me from the voltage issues before they were fixed?
I remember Puget systems pointed to this same thing when they analyzed the issues back in the day when it was blowing up.
https://www.pugetsystems.com/blog/2024/08/02/puget-systems-p...
My 1360p and 13400 seem fine too. I applied the microcode and firmware updates when they came out... but I'm guessing it didn't affect all skus equally for whatever magical reason.
My 13900K was affected by the widespread voltage issue and had to be replaced, but since then I have had zero problems with it.
Undervolting would definitely help, and is the actual fix. The current Intel fixes were mostly just for the symptoms, as the main issue is high voltage+power when pushing high clocks, but they can't actually fix that as it'd downgrade the advertised clocks the cpus were sold with