No, metaverse should not be capitalized, as it is a generic term used to refer to an indefinite virtual realm or environment. The word “metaverse” is not a proper noun, and can be used to refer to different things. However, there is also another “metaverse”, which is capitalized. This is not the same as the term “metaverse” as we know it. It is a personal term coined by Neil Stephenson. Presumably, if you’re referring to a specific virtual environment or region (such as the Metaverse created by the company Meta, formerly known as Facebook), you should capitalize the word.