There is a setting for that
Thank you and sorry, perhaps I wasn't clear.
I saw that setting but it is about new links created which isn't quite what I meant.
Let me try again with an example of my complaint: If I make a Page /Subdir/Test, and then in another Page (let's say /Example) I start typing a link [[Test, that option (when set to full-path) makes the autocomplete become [[Subdir/Test]] which is amazing and just what I want for creating links!
However! If I make a link to [[Test]] (by ignoring auto complete or manually editing the auto completed link or using another editor), and I don't have a /Test file, this new behavior will make said [[Test]] link navigate to /Subdir/Test, rather than to create /Test. That's the Obsidian behavior I dislike and that I wish could be disabled with a similar option to resolve links so they are relative to the current page or to the space root, rather than digging into random subdirectories to find a matching page.
I hope this makes sense.