Earlier quoted context omitted.
You are missing the point. They are the de-facto standard in DevOps tooling from one person startups to gigantic public tech FAANG companies. My prediction, HashiCorp after IPO'ing will get acquired.
Which FAANG is public about using one of those?
I could probably find more, but many (most?) large tech companies use one or more of the Hashicorp suite. I don't think it's unfair to say that they are the standard toolset for certain roles.