Well guess what. Not one gltf model in the engine repo…
Guess ogre it is until some type of transition is made for existing models.
One is in
jme3-testdata, the duck: jmonkeyengine/jme3-testdata/src/main/resources/Models/gltf/duck at master · jMonkeyEngine/jmonkeyengine · GitHub
oh, nice there is one at least.