Import photos via csv

Hi,

Yes. The import system has a feature which allows you to import products based on files/images and if you don't provide the product_name it automatically uses the file/image filename for it.
Note that the import system is a system to add products, not really to update products.
You can use it to update, but then, for some things like this, you have to provide the column in your CSV if you don't want it to be overwritten.
If you don't want to add the product_name column in your CSV, you can instead use a product mass action with a filter import from CSV file. The mass action system handle updates as you would expect but is more hungry for resources while the product import system is optimized for speed so that you can import really big CSV files with it, so we don't want to add too much checks (in this particular case, we would have to first load the data of the products from the database to compare it to what you have in the CSV which could be really problematic for big CSV files).