What is cosmos used for?
All of the blockchains are built on the open-source Cosmos technology, which is made available through a software development kit. This approach minimizes complexity and offers developers the flexibility to add any features they desire. The kit provides common functionalities like staking and governance.
Plus, many of them use the Inter-Blockchain Communication protocol, to ensure secure communication between blockchains. This is what enables messages and tokens to be sent between chains.