I only take one note: multi-chain wallets shouldn't pursue "everything in one," I just split them by use (long-term cold storage, daily hot wallets, test accounts), each time cross-chain/transaction only move that one, bookkeeping only look at on-chain records and address labels, don't rely on memory—by the way, regarding the current NFT royalty disputes, honestly it's still about the trade-off between liquidity and revenue sharing, I am even more convinced: verifiable balances and paths are the most important, don't let fragmented assets mess you up.