How to make relative paths for media files and post images?

Question

Search Engine Optimization

Good afternoon.
For search engine optimization, it is recommended to use relative links everywhere. Especially when you go to https://
I found how to make relative paths for links. But here's what I would not add to media files: an image, a pdf - and I display it on some page, or I add an image of a post - an absolute path is created.
How to make it use relative paths for media files?