Breastfeeding:
The official policy is here.
https://www.disneylandparis.com/en-...abies-and-families/baby-breastfeeding-policy/
However, even with a policy a few years ago there was a breastfeeding incident with a guard who was not the most empathetic. Disney apologized to the mother. You are allowed to breastfeed in public, however, if possible, I would suggest to find a quiet corner.
As mentioned in the article, there is a baby care center in both parks. But in Frontierland near the Cowboy Cookout and the playground there are also quiet corners. I would avoid Discoveryland as this place gets very crowded easily (that's where the breastfeeding incident was, the mother had chosen a bench at the entrance of Discoveryland, with a lot of foot traffic, so chances of someone taking offense were very high here). But to be honest, if you mind your own business and don't have your breast on display, I think you could basically breastfeed in any restaurant. Or even in the Arcades.
Last tip, when you take the left arcade, you can walk almost completely covered from Main Street to Pirates of the Caribbean, this walkway has lots of quiet corners in the Adventureland part. Muslims sometimes use these corners as well for their prayers during the day.
Changing stations
As a woman, I can only tell you about the women's bathrooms
but to my knowledge all women's bathrooms have a changing station.
Rider swap:
It does exist according to this website:
https://www.disneylandparis.com/en-gb/guest-services/visiting-disneyland-paris-with-children/
Suitable attractions:
https://www.disneylandparis.com/en-gb/family-with-young-kids/
