We are happy to see that we are able to write individual metadata to blobs:
https://docs.microsoft.com/en-us/azure/data-factory/connector-azure-data-lake-storage#azure-data-lake-storage-gen2-as-a-sink-type
This helps us a lot for identifying PII. BUT:
The GetMetadata activity in ADF doesn’t seem to accept individual attributes within the field list. Even dynamic content with an expression is not working

Any ideas?