No worries, you aren't bothering me!

Most comics I read are manga, so I don't know a lot about the ones in Portuguese; the exception is Maurício de Sousa's Turma da Mônica (Monica's Gang), as it's something I grew up reading. However the author is Brazilian (and markedly Paulista), and the target audience are kids so... probably not what you're looking for.

That said, I looked for recs across the internet, and found a few interesting ones:

Balada para Sophie (Ballad for Sophie) - from Filipe Melo and Juan Cavia. About a misanthrope pianist in the century XX, visited by a journalist who makes him tell her his through life history. The art style looks really polished and nice:

A Fórmula da Felicidade (The Equation of Happiness) - from Nuno Duarte and Osvaldo Medina. A mathematics prodigy finds an equation that grants everyone but himself happiness. The animal characters seem to evoke something of a fabula.

Estes Dias (These Days) - from Bernardo Majer. It's a half dozen slice of life stories, mostly about monotony and relationships.

Something feels godamn broken in that sense.

It's doubly weird, because not even here in Brazil people talk about them. I think they're mostly geared towards the local market.