It depends which part of Brazil. Those parts of Brazil that are 100 percent Portuguese, 100% German, 100% Japanese. Weirdly, it's a weird place. Brazil.
There are no such places in Brazil. You have only small parts of cities and towns that are colonial or immigrant themed while the rest of the place is just like everywhere else here and it's actually very unimpressive because they're nothing more than a dollar store imitation of foreign cities.
Idk from my experience the country is not as black as both for stereotypes among foreigners (from movies to the internet due to how brazilian posters are hated for their stupidity) and international propaganda portrays. Many of those mixed are closer to indigenous + european than mulatto, although it's a big and indeed diverse country.
It also goes both ways with many people closer to Southern Europeans like Italians or Iberians classifying themselves as mixed.
Race identity in Brazil is very fucking shoddy for two sole reasons: race mixing and lack of preservation culture.
I might be talking outta my ass but a Black American family, for example, would've keep track of where their ancestors came from as in, "
Oh, my great-great-great grandparents were slaves who worked in the cotton fields". Same for White Americans, Asian Americans, Native Americans, etc. Not to mention these racial groups have been segregated in America for a long time.
Brazilian families rarely keep track or are aware of their ancestors. It would be hard for an average Brazilian person to know about their great-grandparents: who they were, what they used to do, where they came from, how they lived, etc. because there never was an awareness to preserve family documents and rural flight was a big thing in Brazil 'till 30 years ago and some folks from the countryside didn't keep in touch with their relatives back home after leaving for the city.
Family unity here is kind of an imagined thing rather than actual tradition because dysfunctional families here are a dime a dozen. Many disrupted families and relatives who break contact with each other hardly pay any mind to ancestor honoring or anything like that.
Because of this most people can't really know if they have any Black or Indigenous blood in their family so they often assume they have because race mixing has been a thing in Brazilian history since Portuguese settlers first arrived. Aside from the fact that Brazilians go for skin color or facial features to guess one's ancestry which is kinda of an ignorant thing to do.
On top of that, this kind of topic might be discouraged becuase some might understand it as "racism" or whatever while you have a Black version of Nuremberg Race Laws in entrance exams for universities to decide whether someone is Black or not, at the same time they conflate "Black" with "Pardo" (Brown) which is a generic term for a mixed race person, not necessarily having Black ancestry.
"Black" social movements here, which are just a carbon copy of BLM, often use Pardos as a synonym for Black to try and legitimate their "minority" cause, even if Pardos are the biggest racial group in Brazil. It's very fucking asinine.
So, yeah, racial topics are a complete clusterfuck in this country.