@Veratai
I also created a KOTATSU using VRM, and I think making things in VRM is a great idea since you can configure bones and the like to make them move!
oh? glb? i don't exactly know anything about it. i've taken to literally attaching objects to empty vroid skeletons xD and then giving them a bone/chain here and there for doors, or swinging bits
@Veratai
In my case, I converted the village model to GLB format and imported it into VRMPosingDesktop. The process did require some extra effort, such as adjusting material settings and converting particle-based tree leaves into actual objects during the conversion XD