I can agree with that. Something that looked particularly bad was von der Leyen openly supporting Israel, in contrast with what had been decided by the rest of the EU institutions. Basically she took initiative and used her position to support her own agenda rather than the one agreed upon by the institution she was representing. (source, albeit soft paywalled)
A more direct approach in foreign policy is sorely needed for our continent, but I think we are still going to have to wait a few years before we can see it.
That ban has been in place since about as long as smartphones have been a thing. And even regardless of the national ban, generally school forbade them as a local policy.
Doesn’t change the fact that nothing will happen if the teacher doesn’t act. So TL;DR nothing will change, it will remain up to the teacher like it already was.