In my (admittedly uneducated) view, VR can be useful for some professional tasks in the immediate future. Things like 3D modeling, architecture, explorative data analysis. But Facebook is a social media company. Aside from a small proportion of enthusiastic users, people won't want to socialize with VR. They'd rather check an app on their phone every so often while doing something else. If they want a more personal and engaged conversation, a video chat is better than VR. The Metaverse makes no sense beyond games. And the heyday of socializing in MMOs has long passed (much to my dismay).