Hey !
Thank you for your awnser, the process is a bit clearer now (yet, quite confusing at first). Working with .gltf isn’t as easy as with .fbx
Still in troubles (something else must be wrong, and I am really confuse on that matter), I’ve quickly checked for an addon that could help me, and it seem that one exist.
But it is simply not working, and I think that is because of the ACES setup I’ve made. I am going to investigate a little more, and will update consequently.