Is Everyshift Now Just a Partial Shift?

The term "partial shift" has been used to refer to a deviation from the standard alignment. Is shifting an all or nothing term where any deviation from standard positioning means it's a shift? Or is a partial shift an indicator that the defenders didn't move very far? How different is the meaning of the phrase this year versus previous seasons? Should we even use the term anymore? Or is every shift now just a partial shift?