Probably you need to customization for your requirement, In your snapshot, you are talking about save images in your custom architecture, while Magento provides the different path to add your images before import instead of default pub/media/import path.
You can add your images to a separate folder and add your new path to import form.
You can check link, https://www.rakeshjesadiya.com/how-to-import-image-using-csv-in-magento-2/
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