Wikipedia:

É um gênero mesmo. Nele, cada capítulo da estória termina em suspense, que é retomado no capítulo seguinte.

Don't know how accurate it is, cause zines are independently done. But maybe work in the context for you.

"In English newspapers, the term [feuilleton] instead came to refer to an installment of a serial story printed in one part of a newspaper. [1] The genre of the feuilleton in its French sense was eventually included in English newspapers, but was not referred to as a feuilleton." https://en.wikipedia.org/wiki/Feuilleton

An individual installment of a serialised work of fiction that is published separately, rather than in a newspaper or magazine is a called a fascicle. For example Dicken's Pickwick Papers was first published separately as fascicles. In contrast, Conan Doyle's Sherlock Holmes stories, which were first published in The Strand Magazine are an example of the feuilleton genre, i.e. published serially in a newspaper or magazine.

"The piecemeal publishing of books," observes R. M. Wiles, "was well established a hundred years before Dickens put pen to paper."3 Early serial publications were generally of five kinds: fascicle issue, cheap part reprints, [51/52] newspapers and magazines, installment fiction, and series."

Pickwick Papers and the Development of Serial Fiction, Robert L. Patten, Rice University Studies, page 51-2, https://scholarship.rice.edu/bitstream/handle/1911/63174/art...

The correct answer to the asker's question therefore depends on whether the installment of the work is published separately (fascicle) or in a newspaper or magazine (feuilleton).