Which was explained in the cited link.

And if I want 𝗯𝗼𝗹𝗱 text? I know how to get italics.

Most typographs disagree with using italics:

> If you’re us­ing a sans serif font, skip italic and use bold for em­pha­sis. It’s not usu­ally worth ital­i­ciz­ing sans serif fonts—un­like serif fonts, which look quite dif­fer­ent when ital­i­cized, most sans serif italic fonts just have a gen­tle slant that doesn’t stand out on the page.

http://practicaltypography.com/bold-or-italic.html

Eh, I read quite a few books that say the opposite

> If you’re us­ing a sans serif font, skip italic and use bold for em­pha­sis. It’s not usu­ally worth ital­i­ciz­ing sans serif fonts—un­like serif fonts, which look quite dif­fer­ent when ital­i­cized, most sans serif italic fonts just have a gen­tle slant that doesn’t stand out on the page.

http://practicaltypography.com/bold-or-italic.html

As I answered to several other comments, this is not a helpful suggestion when most typographers suggest to use bold for emphasis of sans-serif fonts, as italic with sans-serif is less noticeable than 𝗯𝗼𝗹𝗱.