What does this have to do with X, Brazil, or Musk?
We are talking about a single country.
TikTok has the power to sway any election how they want. The data available to them about what reels sways what people in what direction is immense. The only question is if they are doing it.
In 20 years I expect either democracy to vanish, or algorithmic social media to be widely banned, or control over algorithmic social media to be viewed more like control over nuclear weapons...