Am I correct in thinking that the defining characteristic of a digipak is the glued in plastic tray (similarly a digibook has a glued in plastic tray etc)?
I've noticed lots of releases which are labelled as digipak but which my physical copy (where I'm pretty confident it is the same release) is actually what I would call a gatefold (that is, a cardboard thing folded into two or more parts which has slots for CDs/booklets etc but crucially not a plastic tray).
Most recently I noticed this with https://musicbrainz.org/release/a9056b51-ee8b-4501-aefc-5a2ce2b96eb0. My copy has the matching catalogue number and it even came with a sticky label on the plastic wrapper which says "deluxe digipak edition" but there is no plastic tray, the CD goes into a slot in the folded cardboard (something like this).
I've "fixed" a few of these in the past as I came across them but it seems to be so prevalent that I'm wondering if I'm just wrong about what a digipak really is, so more recently I've not been touching them.
Am I in the wrong (or minority) here?