But I don't think the open-source initiatives are "just for show" because nobody cares, and so there is no one to show it to.
They are more wishful thinking, random initiatives. "Let's do open-source!" and throw a couple million euros here and a couple thousand there, and we have the illusion of doing something.
What is made in that manner is also of incredible low quality; most of the time it doesn't work; I recently tried to do a "téléconsultation" with a hospital, which uses state-sponsored software. It was impossible to connect (and the login and password are sent in the same email! why bother with a password then??)
Data sources are not maintained or are incomplete. Data about road accidents don't mention the brand of the car because French car companies lobbied against it! (Which tells a lot about car quality in the first place). Etc.