I don't think a ministry of truth is a good idea, but how about this.

A State could define 'journalism' in some formal sense:

The point of which people are free to flag their publications as 'journalism TM', and have to be able to proof due diligence:

You know the basic stuff of sources, verifying, whatever is the basic list that is in all the journalism textbooks.

With this in place, there should be a low barrier to sue these selfproclamed "journalist TM" for their publications;

The defending journalist does not need to proof their claims are correct, but show a judge he did his due diligence. Failing to do so will result in fines.

This way, you can just say whatever, and people can percieve it as whatever, if the publicist is not prepared to turn their articticle or whatever into testemony and put their balls on the line.

And when some "journalist TM" is talking absolute crap, you can make him pay for it and punish that behavior.

'Fake news' is fucking everywhere and its a combination of agenda driven bias, lies or lazyness. The lies and the lazyness should be faily easy to expose via a due diligence tests. And there will always be this non-formal domain where people can and probably will post all kinds of wild claims. That is not the point; the point is that instead of governments becomming tyranical speech policers, they could perhaps provide a noise filter as a service.