Gerhard Brueckl checks out the Apache Parquet connector in Power BI, reading from a Delta Lake:
“Apache Parquet is a columnar storage format available to any project in the Hadoop ecosystem, regardless of the choice of data processing framework, data model or programming language.”
However, Parquet is just a file format and does not really support you when it comes to data management. Common data manipulation operations (DML) like updates and deletes still need to be handled manually by the data pipeline. This was one of the reasons why Delta Lake (delta.io) was developed besides a lot of other features like ACID transactions, proper meta data handling and a lot more. If you are interested in the details, please follow the link above.
Click through for a demo.