Facebook's Metaverse launch is ongoing, with various features and experiences being rolled out gradually. As of now, there isn't a single definitive launch date for the entire Metaverse, as it's a complex and evolving project. Facebook, now Meta, has been introducing elements of the
Facebook Metaverse over time, such as Horizon Worlds and Horizon Workrooms. The development and expansion of the Metaverse are expected to continue for the foreseeable future.