Hello
This may vary slightly depending on the template but for the most recent you can remove the following from the end of your templates
../templates[YourTemplate/inc/fonts.php.
foreach ($googlefonts as $v) { // loop
$app->getDocument()->addStyleSheet('//http://fonts.googleapis.com/css?family=' . $v . ':' . $font_weights . '&&subset=' . $font_subset . '&display=swap');
}
Once removed, Google fonts will still be displayed if cached by the users browser however will not be loaded.
Ciaran