I don't think that Snowflake has implemented the ability to read from a table via Delta Sharing as of December 2023. Please reach out to your Snowflake representatives and urge them to consider this feature from their side. 

Alternatively, you can query existing data from Snowflake with Lakehouse Federation as well as the table that is residing in Databricks.  A Databricks SQL Warehouse would be great way to query data stored in Databricks as well as Snowflake via Lakehouse Federation via SQL.