transformation of date

Data Formatting is something that is handled by your browser settings. Typically in a Data Preparation tool what's crucial is that the correct data type is recognized. If you load this to a Lakehouse, then you might want to check how things are being formatted there or how you want to format data in your reporting layer.

Dataflow / Power Query doesn't have any specific setting to match a particular data formatting for a particular data type. We just inherit and respect whatever setting you have on your browser to display the data following that configuration.