No all I know is that it's a new L2 with very cool branding by a very cool company that I respect
something something gas costs and maybe additionally EIP-4444 where ETH devs decided to make outright hostile proposals to delete mainnet state from nodes as to cope with defi trading bloat yes you heard that right ETH core devs
Part of it I believe is to launch Nouns Builder on L2 for gas reasons (voting, props, settling)