Change Profile Tab Labels of BuddyPress/BuddyBoss

change_tab_lable_bb.php

<?php

/**
 * Change label to Followed for Suscriptions.
 *
 * @return void
 */
function bb_forum_profile_menu_tabs() {
    
    // Handle fatal error in case of plugin not available
    if ( is_admin() || function_exists( 'buddypress' ) ) {
        return;
    }

    buddypress()->members->nav->edit_nav(
        array(
            'name' => esc_html__( 'Followed', 'default' ),
        ),
        'followed',
        'forums'
    );
}

add_action( 'bp_setup_nav', 'bb_forum_profile_menu_tabs', 201 );