delete all images from cache

Hello support, I need your help to delete all cached images for my client. I know I need to provide a list of urls. However, to compile the list I have a few of questions.

To my understanding images can be cached on any of the i[0-3]wp.com servers. When one of these servers is prefixed in a image url, eg. https://(i[0-3]wp.com/)domain.com/wp-content/uploads/xxx.jpg, request the image will be cached on that server.

Is this correct?

If so, to ensure all images are purged from all servers do I need to provide every image and server combination? Or is the image url sufficent?

Also, for the different sized images auto generated by wp.org or any plugin, do I need to provide those urls as well? Or is the original image url sufficent?

Thank you for your assistance!