Not a defense of chat control, which I am very much against, but can you really claim that the internet gave "dissident voices" a platform?
Media is arguably even more tightly controlled than in the 1980s, legacy media is owned by a few billionairew, right-wing influencers are all paid hacks, with a lot of them relaying pro-Russia propaganda. Meanwhile, genuine independent journalists are buried under algorithmic nonsense promoting ragebait and hate.
The internet very much failed to deliver a new era of feee speech. Instead, our conversations are now hosted on a few platforms and controlled by the oligarchs that own them, who are able to editorialize out dissenting voices and promote their own disgusting viewpoints.