That sounds like an interesting podcast episode and useful advice for managing cryptocurrency accounts. Segregating non-KYC coins using different SPV (Simplified Payment Verification) wallets or accounts can help address privacy concerns while improving security measures.

I agree that the Sparrow wallet is a great option for managing Bitcoin, and its compatibility with hardware wallets such as Coldcard provides an added layer of security. However, it is also important to keep in mind that using hardware wallets carries their unique risks and challenges.

As for your comment about Ledger, every individual has their personal opinion about different products based on their own experience. It's important to do your own research when choosing a wallet or service in order to make informed decisions.