The difference between American and European Nutella seems to have been documented in a lot of detail, but I can't find any sources on the differences within Eu

The difference between American and European Nutella seems to have been documented in a lot of detail, but I can't find any sources on the differences within Europe. I have found videos about the differences between German and French Nutella, and French and Italian Nutella, but nothing more than that. I think a combination of bad cocoa harvest and previously a bad hazelnut harvest have altered recipes globally to be more sugar and fat and even less cocoa and hazelnut, but it's hard to find any recent comparisons. Maybe you have a link? I don't speak any languages from behind the Iron Curtain where the impact is probably the most obvious, so I would appreciate a good link.