I would like to see this too. 

Anyone has information on accessing Power BI Semantic Models via the XMLA endpoint using PySpark in Databricks, please share any YouTube link or exact video related to this.

You would need the power bi report to be in a Fabric/premium capacity workspace and Capacity setting XMLA Endpoint = Read (or Read/Write)

Any specific reason why via XMLA endpoint?
Via the REST API : Datasets - Execute Queries - REST API (Power BI Power BI REST APIs) | Microsoft Learn, you can even query the semantic models within pro workspaces