hmm...that I don't know as much since the intricate details are not reported ...
is there a lot gerrymandering in Brazilian politics?
hmm...that's interesting - it's like even if Bolsonaro is out he would have left his legacy behind to continue his form of politics...
Not really. What happened in Brazil is that the 'Bolsonarism' here completely brainwashed the population to the point his supporters have the worry to be more organizated to vote for him and the ones who support the ideals he sells.
While a big portion of Lula's voters aren't really paixonate about the Left like the Bolsonarists are about the Right. They voted for Lula, because he is who he is. He's a phenomenom and a much bigger political figure than the Left itself or his political party. So a lot of his voters didn't think about voting for the representatives that would side with his plans. And a lot of them even helped to elect conservative deputies/senators/governors in the process.