They have a duty to cooperate though: They cannot disregard other rulings. Conflicts interpretation and by extension conclusions are typically finally resolved

They have a duty to cooperate though: They cannot disregard other rulings. Conflicts interpretation and by extension conclusions are typically finally resolved at the EU level. When there is bickering. In practice you see this happening at several levels, in France as well as in Germany there are bans on 365. And in separate states in Germany. etc.. I expect this will come to a head at the EU level. And I'm nervous customers will move away from 365. Because Azure AD integrations will then need to be replaced. But I suspect things won't move quite so fast.