Coldcard, Sparrow Wallet, and Raspberry Pi Full Node Setup for Privacy and Security

Hi everyone. I recently got a Coldcard and have a few questions regarding the use of Sparrow Wallet and setting up a Raspberry Pi full node for optimal privacy and security:

1. Is Sparrow Wallet a widely recommended and trusted option within the community?
2. I'm used to the Ledger interface, which displays my total balance and how it trends. Does Sparrow offer a similar experience? If not, are there any secure alternatives that don't compromise privacy?
3. Can I set up a Raspberry Pi 4 (2GB/4GB) full node and use Coldcard and Sparrow as a cold storage solution for maximum privacy?

Are there any other crucial questions or considerations I should be aware of when setting up this combination? Any advice or insight would be greatly appreciated. Thanks all :)