Your Soviet comparisons are a dishonest take. They're also moot, since an issue would be authoritarianism. Regardless, yes, authorities need to exercise their authority to ensure the integrity of elections. It is difficult to do this in a fair way, and regardless it will stir controversy (another vector to throw oil on).
The external influences are documented. We know the Russians meddled with elections in The Netherlands (the 2016 Ukraine referendum), Romania (recently), Brexit, Trump 2016 (via the Clinton hack), 2020, and 2024, and likely also Hungary. In regards to Romania, yes the elections were repeated. That thing tends to happen when elections are fraudulent.
> Fortunately in this case of Brazilian elections, there is nothing secret about the list of accounts which have been limited. The censors are very open about who has their account limited and why (all political candidates during elections).
Because it is about a local law regarding airtime. A law Musk doesn't respect. But because now it requires an active action of the mark to get into a propaganda tarpit, instead of the timeline, it is a reasonable deterrent.