Redhat is not the original. Just of the ongoing projects, there is both Slackware and Debian, which are both older than Redhat. Redhat stands out because they are a commercial, for profit company, so they have more money and resources to invest in Linux development than most organizations, and they have a vested interest since it is their product base.
Never used it, never will - and I see it as very negative. Getting questionable info for a metric shit-ton of real-world resource usage is not a good thing.
https://www.heise.de/en/news/ChatGPT-s-power-consumption-ten-times-more-than-Google-s-9852327.html