Just bring what you want. You do need adapter for french side. It's France. You need an adapter in most countries.
They come in a small kit you can see what you need when you get there.And I have a plug with regular electric and USB on it. Then you only need one adapter.
Amazon. Belkin.
https://www.amazon.com/dp/B0943W2CT...bc5-059f-4b00-aed1-1b8f8665a16c&th=1
Cheers
irina