Since Font Awesome was released, we've supported copy and pasting glyphs of our icons into your favorite desktop apps.
Make sure you’ve set up Font Awesome in your project and are ready to manage some mischief.
After completing the steps in set up, open a new or existing document in the Desktop app you want to use Font Awesome icons in. We'll use a new document in Figma for the walkthrough below.
However your app allows you, create a new layer or text block to insert text into.

Next, using your app's font/typeface selector, find and select "Font Awesome 6 Free" or "Font Awesome 6 Pro" as the one you want to use for the current text layer/block. Remember, if you want to insert a brand icon, choose the "6 Brands" font/typeface.

Next, you're all set to reference the icon you want to use. First, find the icon and copy its glyph to your clipboard.

Then, paste the glyph of that icon into the text layer you've created.

Font Awesome 6 comes in 5 styles/weights (plus brands!). If you've installed all .otfs, you can change the weight of your text layer/block to switch between visual styles.

Remember to convert these icon text layers to vector outlines or rasterized copies before using the document in some graphic/print design and even web-based production steps. Individuals and services/tools you may be using might not have access to the font files those text layers depend on to render things right.