Many metaverses actively use NFT and continue to develop and interact with each other. For example, a next-gen gaming NFT utility initiative named Shuna Inuverse (SHUNAV2) bypasses that process by making partnerships with the already existing and future appearing tokens to share their metaverses. More information about how it is possible to interact between different metaverses can be found here - https://www.livebitcoinnews.com/lbank-exchange-will-list-shuna-inuverse-shunav2-on-january-5-2022/