hey @cp0x, good question! As mentioned in the updated proposal, we suggest hosting the daoURI on Github, and not IPFS.
For example, if the daoURI is hosted at: https://github.com/ArbitrumFoundation/governance/tree/main/daoURI, we would only need to publish it onchain once… Any changes to the data can be made directly to the GitHub file without affecting the URI, thus avoiding the need for further onchain updates.