Should the default values for font-weight and font-style be indicated when added to the typewrit family by @font-face?

[Amritpal]

Is there any advantage of the second option over the first? What's the difference? What option?

First option:

@font-face { /* Обычное начертание */
  font-family: "Exo";
  src: url("path/to/file.woff2") format("woff2"),
  url("path/to/file.woff") format("woff");
}
@font-face { /* Курсивное начертание */
  font-family: "Exo";
  src: url("path/to/file.woff2") format("woff2"),
  url("path/to/file.woff") format("woff");
  font-style: italic;
}
@font-face { /* Полужирное курсивное начертание */
  font-family: "Exo";
  src: url("path/to/file.woff2") format("woff2"),
  url("path/to/file.woff") format("woff");
  font-weight: 700;
  font-style: italic;
}

Second option:

@font-face { /* Обычное начертание */
  font-family: "Exo";
  src: url("path/to/file.woff2") format("woff2"),
  url("path/to/file.woff") format("woff");
  font-weight: 400;
  font-style: normal;
}
@font-face { /* Курсивное начертание */
  font-family: "Exo";
  src: url("path/to/file.woff2") format("woff2"),
  url("path/to/file.woff") format("woff");
  font-weight: 400;
  font-style: italic;
}
@font-face { /* Полужирное курсивное начертание */
  font-family: "Exo";
  src: url("path/to/file.woff2") format("woff2"),
  url("path/to/file.woff") format("woff");
  font-weight: 700;
  font-style: italic;
}

[authera]

Better download. ttf ♪ https://www.fontsquirrel.com/tools/webfont-generator or another generator, and work with the generated code.

Detailed introduction of work on prints: https://developer.mozilla.org/ru/docs/Learn/CSS/Styling_text/Web_fonts