Essential Grid’s icon fonts come from your site. Google fonts come in three ways: seven of the navigation styles that Essential Grid ships, such as Mara Ostheim and Hugo Stellmark, load Google’s Material Icons from Google’s servers, and six of them also a text font; the Google Fonts add-on loads the fonts you add for your skins; and a template brings the fonts its skins and navigation use.
To keep Google out, choose a navigation style without a Google font and give your skins a font your site already hosts. While you use Google fonts, name Google Fonts in your privacy policy.