Is there a UX term for a "happy state"?

A "happy state" is a bit like an empty state but occurs when the user successfully completes a task or likewise.

Is there a coined term for this kind of screen?

Example (this source names it a "congrats page" but that doesn't sound right as it doesn't speak for other kinds of "happy states"):

Edit due to comments: I'm asking about the way to describe these particular type of screens. Not the potential mental state of the user!