According to https://en.wikipedia.org/wiki/Law_of_the_European_Union, "legal acts include regulations, which are automatically enforceable in all member states": any move by national parliaments would be overruled.

Interesting that this national law was pushed by people in an alliance around Macron: the same team which might sign the opposite for the EU. Just a drop in an ocean of nonsense, from where such a dangerous bill might emerge.

It's not hard to imagine why. They want to spy on their subjects, and don't want to be told how to do it. Hence spying yes, EU no.