Hi, @ChrisChan 

You’re absolutely right that the data used with Genie needs to be managed under Unity Catalog. However, if you want Genie to query data in Snowflake, you can use lakehouse federation. I’ve personally tried this method, and it worked successfully for me.

Additionally, this documentation might be helpful regarding Genie's security features. Apologies if you’re already familiar with it:
https://docs.databricks.com/en/genie/index.html#privacy-and-security