All governments spread misinformation on purpose? I suppose it's too much to ask for proof on that?

Maybe you mean the initial mask conundrum? That was evolving guidance based on realities ( not enough masks) and current understanding of a changing situation. It was pretty much everyone, led by the WHO, though, but it was only kind of wrong ( I don't know about the whole world, but in France the official line was that "masks don't help you not get infected by much, there aren't enough of them and most people wouldn't know how to use them properly, so there's no need for everyone to wear a mask", which evolved to "masks stop you spreading, so everyone wear a mask").

We were also told vaccines prevented infection, after Israeli papers clearly established the opposite.

We were told that green passes were conspiracy theory.

We were told that booster shots would never be necessary.

Natural immunity was dismissed.

Those are four fake news. Shall I continue ?

So, all governments officially said all of those while knowing them to be untrue? That's a bold claim ( i live in France and don't recall anything of the like on any of them). Care to share some sources?

The French government did.

Booster shots not necessary for green pass:

https://youtu.be/OU3_bjF_5vw

The vaccine prevents infection:

https://www.leprogres.fr/amp/sante/2021/07/30/on-peut-etre-v...

No green pass for restaurants:

https://www.femmeactuelle.fr/actu/news-actu/covid-19-quand-o...

I can also add the lie about 90% of patients in ICU being non-vaxed. We were later told that it was a misinterpretation of the available data.

Etc etc. It became kind of a meme: when Olivier Veran says something will never be done, it ends up done quite soon. I was about to get this vaccine. But those blatant lies deterred me from doing so.

It's not lying to change one's opinion, or to be mistaken. Lying needs intent. Véran changing his opinion or being overruled by Macron doesn't mean any one of them is lying on purpose for some nebulous purpose.