Thanks for the tip! I ventured into the powerbi folder (inside WindowsApps), and in the subfolder "bin\ODBC Drivers\Simba Spark ODBC Driver" I found the version by running "cat SparkODBC_sb64.dll | findstr Version". It printed "ProductVersion2.6.18.1030".

So this *should* support cloudfetch, but I still see the odd performance characteristics as described above. So my question still stands ( @Piper Wilson​ ), is there any way to *confirm* that cloud fetch has been used? This really seems like a thing one should be able to see some traces of in the Query Profile inside databricks.