The article notes how Bolsonaro is the first incumbent to lose a re-election bid in Brazilian politics since the 1990s. I remember how Lula was widely acclaimed for his drastically reducing Brazil's poverty rate. According to
Wikipedia, he did that all while paying down the national debt, simplifying the tax system and modernizing the country's infrastructure. It sounds like he managed to improve peoples' lives with poverty-reducing initiatives while also taking actions that still pleased the business sector with his tax reforms and infrastructure spending.
The main thing I'd be worried about if I were Brazilian is not Lula's plans for when he takes office, but his health. He's in his late 70s and he's already had to be treated for throat cancer. Bolsonaro's no spring chicken himself, but he's got time on his side. He might not even
need a coup to get rid of Lula if Lula has another health crisis.