You have a great opportunity to counter the rumour it seems.
Wish I could! There is no information on offer or even any news of industrial action available to the travelling public here in France.
And other than this NOTAM, I am not aware of any other information 'leak'. Usual excuses are heavy sector traffic, and domino delays from earlier rotations for both LCCs and legacy carriers.
I do wish you'd all stop blaming the French because I think that you're all being encouraged to do so by others who take pleasure in creating smokescreens to hide their less than straightforward activities.
Will you all turn on the Spanish next week? Or does this sort of badmouthing only come in garlic flavour?