https://sparrowwallet.com/features/
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Your Own Blockchain Explorer
With all this power, the transaction viewer doubles as a private blockchain explorer. All inputs and spent outputs are linked so you can explore the transaction graph and understand the full transaction history, as far back as the coinbase transaction. In addition, any transaction can be loaded via it’s transaction ID or hexadecimal/base64 representation (in text or QR) for detailed inspection.
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I don't remember Sparrow has UI which let user to search/look for any address, tx or block.
I'm not sure what exactly you meant, but Sparrow have option connect to your own Bitcoin Core or Electrum server.
Source: https://sparrowwallet.com/docs/connect-node.html