Next/Previous Links NOT From Same Category

// Example 1: Disable next/prev in same term for staff members
function my_next_prev_in_same_term( $bool ) {
	if ( is_singular( 'staff' ) ) {
		$bool = false;
	}
	return $bool;
}
add_filter( 'wpex_next_prev_in_same_term', 'my_next_prev_in_same_term' );

// Example 2: Disable for ALL Posts
add_filter( 'wpex_next_prev_in_same_term', '__return_false' );