The erasure is said to be persistent... with the option to revert changes and restore the webpage to its initial, unaltered state
https://appleinsider.com/articles/24/04/30/apple-to-unveil-a...
I would very much love to be able to make persistent content deletions on a site wide basis.
For instance, some news sites insist on embedding persistent auto playing video that adds nothing additional beyond the text version of the story.