I can only say that I am not an electronics salesman for HP products. However, I have Google and Youtube at my disposal. Which I have used for you in this case.
Just copy the following link into the search line of your browser.

https://www.druckerchannel.de/forum.php

If you are unsuccessful, the "G", as far as I know, stands for "Germany" and means to me that the menu navigation of the NW model is not available in German. If that doesn't bother you, then the possible grey import of the NW should work just like the NWG. But this is all a question of price and your decision alone. Please note that I have now only assumed the menu navigation of the printer (displays). I cannot tell you whether this also applies to the language in the apps on the PC, tablet or mobile phone.
But just try it yourself with the help of my two friends Google and Youtube.

With best regards and best wishes for the New Year
Jörg Kleinwächter