[@floriancam Participant 7 years, 8 months ago]

I dont know if I can answer my own question but I found a way to change this :

function modify_breadcrumb_args() {
    $args['home_text'] = 'newname';

    return $args;
}

add_filter( 'bbp_before_get_breadcrumb_parse_args', 'modify_breadcrumb_args' );