That was main purpose for it .
Minitel was hilarious.
Minitel rose - the saucy chatroom style sites like the one above - became so popular that at one point in the late 80s you could see giant ads for them in offline Paris:
More for
Lurker47 - in real history the Internet flirted very closely with state-sponsored or regionalised Internets, and this continues to be a theme today. I'm simplifying here, but the Internet as we know it began very much in close relation with US military interests (see the ARPANET stuff above), but not only that, other countries were so wary of an American Internet becoming a global standard that the French government explicitly funded the Minitel above as a French alternative, and Russians have intermittently been trying to regionalise the net for decades.
The French were so insistent at this that the gov paid massively up front to create the infrastructure, essentially funding it as an upgrade to the national telephone network, and then
gave a free terminal to every French phone subscriber (there was a pay as you go model afterwards, where you were billed like you'd be billed phone calls). And the network protocols they used were fundamentally different as well.
The whole Huawei/5G scares you see now is just a reprisal of that. So basically, the Internet's current form as American-invented global relatively decentralised thing was never really guaranteed, and even in real history we might still see more regionalisation and state control - so in conditions like Fallout's setting, where the post-war international order breaks down very quickly, there's no wonder that you get relatively closed network infrastructures but not Twitter.
