Well, it's been put out there. Any one or all parties could be wrong or lying you just never know.
Here is an older interview from Motorsport dot com written by Oriol Puigdemont.
https://www.motorsport.com/motoe/news/energica-ceo-ducati-not-entering-short-sighted/6724421/Kind of the important part here:
"We have known Ducati for many years and we have a good relationship. We didn't talk about this MotoE thing because they wanted to keep it secret. I think I could have helped them a little bit, but not much. It won't be easy for Ducati because making an electric bike is very different from a petrol bike. It's good that they are going their own way, although I know they have bikes of mine in their factory, which they are studying."
Now this was from 2021 and in 2022 Energica has just announced their "Energica Inside" approach IOW putting their drive trains in other products.
Meanwhile Ducati's CEO says they won't have an electric bike ready for production until like 2030 and they want to look at bio fuels.
Make of it what you will.