They are united in desperately wanting all video games to happen inside one video game. Even though that is, in technical terms, really fucking stupid.
The Metaverse was a joke Neal Stephenson told. A bunch of dorks who got rich did not get it, and now picture The Future™ involving one unified space where everything coexists aaand also they can own it. It'll work just like the internet doesn't. Their techno-overlord dream is slapfighting over a parody of CompuServe and charging the price of an actual t-shirt for a JPEG your character can wear.