How could I benefit from "responsive friendly upload" in strapi?

It’s a HEADLESS CMS Ment to be consumed by an API on the frontend.
Of course yes the CMS Experience is to be able to write things etc for it too.

All I was saying is, I don’t think the default editor for strapi supports it, due to that it’s just a small markdown editor.

  • Can you extend it, sure you can
  • Can you change it, sure you can.

There is even a media uploads functionality you can use to upload images, no API is needed.

All I was trying to say is, you could try use the API to upload something or the Media Libary in the Admin UI. It would give you a way to see what the layout of the API response is, if you know the layout you could also just say something like uploads/sizes/large/1x1.jpg as an example.