It is so annoying that Shopify does not allow the use of a single image across multiple products without a duplicate being created. This would benefit so many stores that want to use an image to maybe promote or display something that is common to several products. It would allow the setting of a single Alt tag and allow the updating of a single image that would replicate to all the products that are using this image. Even if you select the URL for the image and add to a new product Shopify creates a duplicate filling up the files view.
I have a single image that I use on numerous products and therefore have hundreds of a duplicate of a single image, if I want to update this image I have to go to every single product that uses it and manually update each one, come on Shopify there has to be a solution that doesn’t involve this and will let us use a single image and then only have to update a single image when we want to update it.
This was reported years ago and Shopify have just ignored it and don’t give any update or response, poor support for something that so many people have reported on.