The images that could prove either your “theory” or that Bolsonaro tried to, with Delgatti hacker know for the operation “Spoofing”, in some ways crack the voting machines are lost because of a technical decision done in Bolsonaro's government[0]. Bolsonaro's government is also known for using a law of National Security which a President can decree secrecy for one hundred years for his allies and info that could prove he lies to his followers[1].
Transparency is one of the values described in Brazil's Constitution[2], that the parent still deny btw.
Reference in Brazilian Portuguese, I'm sorry again HN audience:
0. https://www.cnnbrasil.com.br/politica/governo-nao-tem-imagen...
1. https://www.poder360.com.br/governo/relembre-casos-em-que-o-...
2. https://www.planalto.gov.br/ccivil_03/Constituicao/Constitui...
I believe it was actually an attempt to do this:
https://en.wikipedia.org/wiki/2015%E2%80%932016_protests_in_...
I think it's likely that the government took advantage of this context to create the perfect pretext for everything they're doing right now. There's a parliamentary investigation into the truth of these riots, latest news I have of that was that the security camera footage of that day had been mysteriously lost. I bet the CIA still has copies though. The footage was requested early this year, government stalled as much as it could but then Lula made some anti-Ukraine comments and soon after images of his people being friendly with the protesters mysteriously made its way to the CNN. I wouldn't be surprised if US agencies like the CIA were responsible for that.