A hyperlink contains visible text and hidden address.
Notepad++ deals with text files that are made of a sequence of symbols (letters) and new lines.
It displays all the symbols in the file. It does not have a concept of hidden “metadata” symbols. If your text file contains ‘here’ that should be treated as a hyperlink text you can’t hide the destination in the same text file since Notepad++ will show it as well. That is (probably) not going to change (ever).
With additional plugins you can imagine a linking-database on the side where the plugin consult the database to jump around.
If you wanted to write: “Additional details can be found in AppleJuice.note” then a tag lookup plugin could allow you to jump into AppleJuice.note file. But if you want 5 different 'here’s to jump into 5 different places you will probably need to develop your own plugin with its propriety database.