A good start would be government officials and institutions to stop relying on and promoting (on) them. Ministers in office shouldn't be using them to communicate with their constituents. Public service broadcasters shouldn't be publishing on them.

Then it would be great of the population follows.

But it is certainly not the role of government to decide what foreign communications services their citizens can access.

Autoritarian censorship is not a democratic tool even if other apparently democratic countries are doing it.