Once the Sharepoint Space has been rolled out among all tenants, it would be nice to have a wider and especially accessible 3D data format range.

Regarding Architectural, Engineering, and Construction objects, there is a global open standard based on 3D smart objects called IFC (Industry Foundation Classes), developed by buildingSMART International (+ info https://www.buildingsmart.org/standards/bsi-standards/industry-foundation-classes/ )

It would be a consistent approach from Microsoft to implement this 3D format in Sharepoint Spaces since is a global and open Standard.
https://support.microsoft.com/en-us/office/add-a-3d-object-to-a-sharepoint-space-6e17e4d4-cad1-459d-90ce-01540697214b