Font Awesome Brands?

[DVD-DAVIDE]

I know that nerd fonts gets a good part of its icons from the Fontawesome fonts, but I wonder if the brands pack has been added, specifically.

I was trying to use the icon for Signal Messenger (U+e663 on fontawesome), but couldn't find it, even in the cheatsheet on the website.

Now my question is, has that pack not been included? Or is the one being used simply outdated? Or something else?