Some fontawesome5 icons not working in LaTeX

Question

I'm trying to use fontawesome5 package in LaTeX. Here is my code:

\documentclass[a4paper, 11pt]{article}

\usepackage{fontawesome5}
\usepackage{fontspec}

\begin{document}
\faKey
\faOrcid
\end{document}

The first command (\faKey) works, but the second (\faOrcid) doesn't. In fact, other commands like \faLinkedIn are also not working. I tried compiling with pdflatex, lualatex as well as xelatex on Overleaf, but none of them seem to work.

Answer 1

As the above comments suggest, some fontawesome5 icons like \faOrcid and \faLinkedIn have not been added to Overleaf yet and can't be used at the moment. Using academicons seems like the best work around in the meanwhile.

\documentclass[a4paper, 11pt]{article}

\usepackage{fontawesome5}
\usepackage{academicons}
\usepackage{fontspec}

\begin{document}
\faKey
\aiOrcid
\end{document}