You can add a personalized label to all products, at once, because with the attributes I need to go to each product to edit and add the configured attribute, it takes a lot of work to do it this way. It would be nice if there was a way to activate a label on all products at once.
For example, Black Friday, all products are at a discount, so it would be easier to activate all products at once. Type activate label on all products or individually.
You can add the custom label in the form of attributes. Go to Products -> Attributes -> edit attributes -> Enable the option to show an attribute label on the product image.
Screenshot for clarification: https://ibb.co/MV5ccbT