“export to glTF” should save basic scene parameters such as materials, colors, object transforms etc. What kind of modification are you making with your objects? Also, keep in mind, that in order to properly export your materials they all should be make glTF-compatible.
I would like to add my query as well. I think this question asked by Kreativa is important, even I have the similar question but some times I found that, some questions are not at all addressed or attended.
whatever scene I make with basic objects and if I shift their positions, orientations than, the gltf export should happen with the changes updated. Is it really difficult thing to achieve?
My thought process is always little beyond than just an entertainment by using V3D.