Yes, you may use .obj model files (and .gltf/.glb).
This particular scene has not been released as an example I'm afraid.
Viewing post in Merry Christmas (with models)! comments
hi <a href="https://pixelrebirth.itch.io/baby-3d" class="Link Link_theme_outer Path-Item link path__item organic__greenurl" theme="outer" tabindex="0" data-counter="[" b"]"="" data-log-node="1_agb7w04-03" target="_blank" role="text">pixelrebirth</a>, how to use action: create decal, can i rotate 3d model in decal for other object?