How to get the read more custom label

Hello friends.

In this example when using custom excerpts:

https://docs.generatepress.com/article/activating-read-custom-excerpt/

I'd like to know how to get the custom read more label set in the customizer (with GP Premium), instead of use the theme default translation __('Read more', 'generatepresss').

I am seeing that it is in the generate_blog_settings serialized key in wp_options, but I am looking for a better/faster way.

Thank you again.