Is this supposed to be some gotcha moment after they beat Serbia 2:0?
No. You could have written this 1 month ago and I would have responded with the exact same answer.
Based on your superficial knowledge about the individual talents at Brazil you gave away that you don't know shit about their players so you only could name Neymar but forgot players like Vini Jr., Casemiro, Militao and Rodrygo, four players who won the biggest european club tournament last season and are on the top of their game.
There's also players like Richarlison (who scored the best goal of the tournament so far), Marquinhos, Antony and Fabinho to name a few more.
But sure, Brazil is not a favorite in this tournament. Tell yourself that enough and maybe you will believe that.