That's a very unfair take. The examples you list are of a completely different nature.
> gouvernement.fr info.gouv.fr
These are the same website. gouvernement.fr is a legacy URL that redirects to info.gouv.fr. Why did you include both?
> ameli.fr
As I'm sure you know, in France, social security is not administered by the government directly but by the social partners. They're in charge of managing ameli.fr, not the government. Go there, you won't find any logo from any ministry. Why did you include it? With this and the previous example, I cannot shake the feeling that you're on a mission to denigrate with little regard to the facts.
> vie-publique.fr santepubliquefrance.fr
These websites are basically blogs about respectively the institutions of the republic and about public health.
> service-public.fr
General informational website. For most sensitive procedures, you're redirected to a .gouv.fr website. Yes, it could have had a .gouv.fr URL, that's true.
> impots.gouv.fr
Yep, that's the tax website. You can notice it's official thanks to gouv.fr, like all website where you do actual online procedures.