Dear Hook community,
After a few attempts, I noticed that the Hook links were kept when the linked files were deleted. For some people, it may certainly be a bug, but I find it rather useful!
The additional small wish would be that this information (deleted files) be (or can be) accessible from the linked files and also indicates where this file was located.
I give you my vision:
For my research, I use the Zotero reference manager. The files (research papers & notes) are stored on a Webdav server. Due to the limited space on the disk, I download the files when I need them (and delete them regularly when they are no longer needed).
So, when they are re-downloaded (from Zotero), I find my Hook links:)
However, from a working document, it might be useful to know that I had linked this (these) reference(s) and that I can then re-download it.