Lula is a nickname for Luiz (his full name is Luiz Inacio Lula da Silva), he had to add Lula bc during the 1980's governor election they didn't allow nicknames on the ballot and Lula thought that hurt his election (he ended up in 5th I believe). Lula also means Squid in Portuguese.
Yeah, Brazilian Gusanos are insane and think Lula stole a bunch of money to buy just one apartament. They also say he "wasted" money giving it to poor people (they say these people don't deserve social programs and should stave to death).
When Bolsonaro was president, he had created a bot farm to attack his enemies and promote him. They were really bad and broken. They used to call it the "Cabinet of Hate". These Gusanos sometimes forget about Lula and decide to attack Supreme Court Judge Alexadre de Moraes (the one that fucked Elon Musk, and removed Bolsonaro's political rights and livestream rights, yeah this is true), or Supreme Court Judge Flavio Dino (former member of the communist party).
The tax issue is a lie, Brazil has a very protectionist economy (like most of South America). Imported things are taxed to promote local business (without this, the economy would be flooded with American products and that would break the economy). Bolsonaro removed these taxes and the economy crashed. Hunger has decreased a lot in Brazil. And I think unemployment is one of the lowest in the Americas.