Well, we are arguing about semantics. You say that minimal means that it must be functionally minimal. I say that minimal UX is valid meaning as well.
No, we are not. "minimal" has a defined meaning, and "minimal" and "minimalism" as a design philosophy are not the same.
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I see one dictionary definition is "the least possible". Seems like the least possible prompt is no prompt at all, but it's really just a matter of opinion ;)