[mytailorisrich]

> I am envious of the environment where you never saw somebody trying to bug feature request as a bug.

Really, I have never seen that in 20 years.

Of course that is different from another team or the test team raising a bug because they expected something that was not in the spec. Then you tell them that it's not because it does not behave the way they want that it is a bug. But, yes, a defect (more general term than bug) is any deviation from requirements.

Direct input from customers is different as well. Unless there is a contractual impact, if a customer is adamant something is a bug when it technically isn't then there is no point arguing. You can treat the request however you want internally.