I would like to add that it's kinda rare for an United-stasian cartoon to put the Brazilian flag in a "bunch of world flags" scene. Damn, they went that far into putting it in the middle of the screen! That's unusual!
(Mark my words, we will take over the world soon enough /jk)
I love when shows have subtle nods to show their support for these things rather than having to draw as much attention as possible to how progressive they are being
I misunderstood the line that says "O Brasil se soma a uma lista de mais países que reconhecem o Estado Palestino,(...)Reconhecendo também a Organização para a Libertação da Palestina (OLP), desde 1975 como "legítima representante do povo palestino"." as meaning we've recognised the state of Palestine officially since '75
Apparently, according to the govbr site OP linked in reply to me above, stuff is a bit more complicated than that but ye.
It's possible, but even at that level of detail it would have been trivial to add a white dot and elongate the red triangle. I'm thinking they intended it to be Palestine.
The second image in the lead is showing the list of countries who recognised Palestine after the episode in question. Based on the title, you need the list of countries who recognised before.