Next game is today at 4:30 (last game of group play) vs Chile.
https://www.fiba.basketball/sudamericanofemenino/2022/game/0308/Brazil-Chile
Chile beat Uruguay by 12, whom Brazil beat by 57 (45 point difference).
Chile lost to Colombia by 31, whom Brazil beat by 29 (60 point difference).
So I'd expect a Brazil victory.
After that, they take Thursday off, then have playoffs Friday-Saturday. The top two teams in each group play a four-team two-round tournament for 1-2-3-4 and the bottom two teams do the same for 5-6-7-8.
Argentina (in the other group) is clearly the only team in the tournament with any reasonable shot at beating Brazil. In the semis, Argentina will most likely play Colombia while Brazil will probably play Venezuela.