Upload Generated Webfont files
You can easily upload the Webfont files and the plugin does the rest for you. For Google Fonts web font files to host locally a great resource is: http://google-webfonts-helper.herokuapp.com/fonts
To genererate webfont files from a single font file you can use: https://www.web-font-generator.com/
Demo: https://www.kadencewp.com/product/kadence-custom-fonts/