It's a complex question. For really advanced environments, advanced tools are in use (including ftrace, BPF, etc). If you mean more widespread usage, then there

It's a complex question. For really advanced environments, advanced tools are in use (including ftrace, BPF, etc). If you mean more widespread usage, then there's the need for documentation, marketing, etc. Linux doesn't really have anyone focused on doing that (ie, marketing departments with large budgets).