like it is different but absolutelly understandable, they use the second person pronoum (tu and vos) and the verb conjugation for it and brazilians use (você and vocês) instead which is in the third person conjugation, like they also order some stuff diferent than us but it is a thing i can do too because portuguese is just wild like that, it is just not how we are used to speak and there are words that have different meaning but this also happens from state to state in brazil like the geographical distance does that. It is more different than brit vs american english for sure but it is because brit english is just american english with some extra Us in there