I don't disagree, although I think the underlying OS is becoming less important. I'm thinking about Kubernetes, which on GCloud runs on top of a modified Ubuntu

I don't disagree, although I think the underlying OS is becoming less important. I'm thinking about Kubernetes, which on GCloud runs on top of a modified Ubuntu. I do also see debian being used more in the embedded/low power space. But RHEL and friends seem to win in the high performance market. I also see a weirdly large amount of FreeBSD and BSD derivatives.