I've used the Font Awesome icons before (previous version). Back then, I used a CDN like below in my HTML. But now I can't find it anymore. Is there any change on how to use them?
<link rel="stylesheet"
href="https://use.fontawesome.com/releases/v5.15.4/css/all.css">
To use the new free Font Awesome 6, you can again use the CDN (if that's your preference) like the following.
Then, use icons in your HTML as follows.