The Polkadot Parity team proposal plans to launch more Common Good Parachains. The proposal states that on the technical side, this work involves runtime changes to allow more expression interactions on XCM, and developing a testing and release process that scales to multiple runtimes. Foresight News notes that public welfare parachains are allocated by Polkadot’s on-chain governance system, and they are considered public interests of the network, such as bridges connecting other networks or chains. They are usually identified as system-level chains or public chains, do not have an economic model, and can help remove transactions from the relay chain, making it more efficient to process parachains.