better search engine mojo

I found this article which explains a few alternate mechanisms for accessing, including putting the text into the clipboard (ie, select text and copy it), which then gives Antidote access to it.

Also, they say Antidote has an API, so in theory, someone could write a plugin for Notepad++ that calls that API (but I’ve never seen someone in the forum volunteer to write a whole plugin for a use-case that they have no use for, so unless you or someone you know or hire has the skills to write the plugin, I doubt that will happen).

How can I make in work from Notepad++ like it is working from Notepad coming with Windows 11 ?

Since the link you provided indicates that Antidote Druide is commercial/paid software, you might want to look at the purchase agreement / terms+conditions of the license you paid them for, and see if they provide support as part of those terms. If so, I would contact their support, and ask them how to use it with a text editor like Notepad++.

Because, unfortunately, I am doubtful that any of the regulars here have paid for that software or know anything about it, so I doubt that anyone here will reply with an answer on how to do it in the near future (unless someone has better search engine mojo and can find a tutorial for you somewhere).