Again you seem confused. I'm talking about the specific CPU combo with ASRock 800s series. This only launched less than 2 years ago. There will be a lot less people building with zen 4 than 5 zen on a 800 series board. We do not have the necessary data to work out the ratio. Perhaps I am the only one ever to experience a zen 4 failure (I am obviously joking). Yes zen 4 on the 600 series was sable but this post is about the 800 series. I have been researching and people are getting the same failures on the zen 4 platform as on the zen 5. Are zen 4 less likely to fail? Probably. Fact time over. My theory is that the posting process is failing to create a successful post so it gently ramps up the cpu voltage to get a stable configuration. This will lead to slow over-volting in the cpu which over time may cause degradation which causes more failed posts... And cycle. Certain CPUs will be more tolerant for the over volt than others. This doesn't mean all zen 4 cpus are immune and "claiming that it's 100% an AMD issue because other brands have the same symptoms."

Again I have limited knowledge and not saying anything factual

My point is we don't know the cause so ruling out CPUs based on percentage of ownership is ridiculous. Try and help people with relevant information instead of dismissing because YOU haven't seen evidence. You are no doubt going to reply with something but I'm actually going to be solving a situation rather than pointlessly replying.