As i answered you above, Lula's party has to seek partners to get 2/3 majorities to enact laws. He can't just do a Trump and do whatever they want - and that is good and healthy! (Lula himself also has been involved in Unions for decades - i am very sure that he actually cares).

They already made sure that minimum wage has climbed around 30% over the last years and that the Health and Education System actually can get more money (there really was a law prohibiting increased spending in the health sector for 2 decades - absolutely bonkers). Still, there's a lot to do, but for a party that has to actually convince other parties to vote with them they are doing a pretty good job.