You do understand that a resolution passed in the eu parliament has virtually zero standing or chance of being passed into law.
The thing is, this whole EU parliament thing. Started out with good intentions, with a simple agreement as regards cows/beef and butter, to make a common market, between a small number of countries. Which, eventually because of (political) feature creep, became the EU parliament and stuff, we have today.
I don't know the precise details. But they seem to discuss and vote in, certain things. Which seem to be put into actual laws, of the individual EU member states.
I think this mandatory chat control, is a very, very dangerous and slippery slope, in the control of free speech, and in effect news sources (indirectly). If you look at Russia, an apparently very significant way their government is able to keep control of its people. Is by basically lying all the time, in various TV media/newspapers/etc.
Even to the point of starting a full on war, while at the same time claiming Russia is being attacked, and there is no war (special operations).
So the EU, really is playing with fire, big time. With the proposal/creation of new laws like this. There is also the danger of a Trump like leader, getting into power. Then using those new laws and infrastructure (information), to control the people.
Arguably, we need chat and things to be relatively free from political interference. Because of nonsense, such as the Cambridge analytica scandal.
TL;DR
I think this new EU plans, are potentially very dangerous and a very, very bad idea.