Change %%username%% to real name

Hello,

My theme is using the real names link on activity stream, and I would like to keep that uniform. How do I change the code to display the real names instead? This is the code the theme uses to call for the real name:
$user_liked_html = '<a href="'.esc_url( $user['profile'] ).'" title="'.esc_attr( $user['name'] ).'">'.esc_html( $user['name'] ).'</a>';
I need help adjusting it to the plugin’s php that calls for this action.

Another question is- where do I remove the () around the numbers of people who liked the topic?

Thank you!

https://www.ads-software.com/plugins/bbpress-like-button/