And yeah I'm wrong about it being the same term, though I did imagine a different use, I was also thinking of smooth operator, apparently I was unfamiliar with the term in tech.
A business operator is like a machine operator. You're pulling levers on a machine that someone else built while optimizing and tweaking to get the best performance out of that machine as possible.
I think now, having tried to fill in my missing knowledge, that it comes from the same root as DevOps, which I erroneously thought was related to SpecOps. DevOps comes from IT Operations which comes from Operations Management, which yes, is like a machine operator. https://en.wikipedia.org/wiki/IT_operations https://en.wikipedia.org/wiki/Operations_management
Edit: here's a post with "Founder Operators". Which seems like maybe if you just heard "Operator" you would assume they're not a founder, but also that the term can be applied for those running businesses they founded: https://startupceo.com/2023/01/5-things-successful-founder-o...
Which creates separation from "investor" or "engineer" or "founder" or "PM" or "sales" or "finance". Somebody has to make stuff happen in organizations. And the people who are good at it (Satya is excellent) set their organizations up for unique success.
And yes, ex-special forces people roll their eyes at it. Which is appropriate! But the usage is now totally distinct.