• You can create your grant on any chain, but make sure you have funds on ARB for when you apply.
• Make sure that if you’re using a multisig for payouts, it’s an Arbitrum multisig address
• ETH addresses won’t automatically exist as a multisig wallet on Arbitrum like your custodial wallet.
• There are ways to set up a Safe across multiple chains, using apps or within Safe itself.
• Here are the bridging docs if you need.
• Remember, there are L2 to L2 bridges out there that you could use. DYOR!