Hi Steven-
The BoldGrid Theme Framework comes pre-installed with the popular Google Fonts library since all of those fonts are licensed to be used for free for any website. If you have a website license for Another Typewriter, I recommend checking out the plugin Use Any Font which will let you upload your font and use it directly in the BoldGrid Customizer, just as if it were built-in.
That plugin also works with Elementor as well, so it might solve your immediate problem without changing your whole workflow.