so like, font awesome sharp icons exist, imagine paying for those to use in your website while you can just put this in the head of your html file

<link rel="stylesheet" href="https://site-assets.fontawesome.com/releases/v6.2.0/css/all.css" />
<link rel="stylesheet" href="https://site-assets.fontawesome.com/releases/v6.2.0/css/sharp-solid.css"/>