public static function maybe_switch_url( WP_User $user ) {
		$old_user = self::get_old_user();

		if ( $old_user && ( $old_user->ID === $user->ID ) ) {
			return self::switch_back_url( $old_user );
		} elseif ( current_user_can( 'switch_to_user', $user->ID ) ) {
			return self::switch_to_url( $user );
		} else {
			return false;
		}
	}