Hi @theithei here is the link to the answer you asked for
https://answers.microsoft.com/en-us/windows/forum/apps_windows_10-win_paint3d-win_start3d/copyright-on-paint-3d-3d-library-models/760af70f-6c8f-4954-81ce-6671408de6ee#:~:text=Using%20models%20generated%20out%20of,as%20the%20source%20of%20models.
Hope this helps