Is there a way to disable SharePoint from applying metadata from a copied file?
In the attached image you can see that copy_00.xlsx is set to version 1.0 but TextField and DateField are populated from the values of original_00.xlsx.
The fields do not have default values.
This is happening in the classic and modern SPO experience.
Create an XLSX file
Upload to a library and apply metadata values
Download and rename the file
Upload the file to the library