All of our themes comes with self-uploaded fonts support. Theme Options might change between themes, but you should find the Self Hosted Font setting inside Typography Section.
Title: Doesn’t matter, for your reference only
Font Stylesheet URL: .CSS File url, make sure that the css file references the correct font file directory.
Font Family Name: This is the font-family name mentioned inside the css file.
After saving, the font family name will appear on your typography dropdowns.