Page Naming Strategy and wanted links

The link picker is not a document picker, it’s more generic. Linking to a doc is only a sub use case. You can link to URLs, UNC files, etc (see https://www.xwiki.org/xwiki/bin/view/Documentation/UserGuide/Features/XWikiSyntax/?syntax=2.1&section=Links for all options).

Now, one option would be to ask the user to first select the type of link he/she wants to use and then use a dedicated picker for that type.