Facebook users can now interact with and use 3D content across the Facebook News Feed and its virtual reality (VR) platform called Facebook Spaces

Source: Facebook fuses VR, News Feed with 3D posts – Business Insider

Facebook’s concept of 3D is objects and characters modeled as 3D graphics. You can drag the objects around to give a sense of looking at them in 3D – but these are not stereoscopic 3D features.