Astra by default loads a very tiny font icon library from an Astra.woff file. You can see a list of font icons here.
Here is a filter which can be used to disable loading this font – `astra_enable_default_fonts`
You can add this filter in the child theme’s functions.php file as shown below. Just copy the following code and paste into the functions.php file.
Example usage –
add_filter( 'astra_enable_default_fonts', '__return_false' );