Sandeep Pawar talks about a Spark connector:
I am not sharing anything new. The spark data warehouse connector has been available for a couple months now. It had some bugs, but it seems to be stable now. This connector allows you to query the lakehouse or warehouse endpoint in the Fabric notebook using spark. You can read the documentation for details but below is a quick pattern that you may find handy.
Despite it not being anything new, it is still interesting to see the use case of writing T-SQL instead of Spark SQL.