Line Awesome is a free, icon-based outline font created as an alternative to Font Awesome 5.11.2.

Line Awesome consists of about 1400 flat line icons, offering complete coverage of the main Font Awesome icon set. This icon-font is based on the Icons8 Windows 10 style, which consists of over 4,000 icons, so be sure to check that out if you need more specific icons.

To start using Line Awesome in your projects, check the how-to here.
To use Line Awesome in Photoshop, follow this guide.