I have successfully installed drush and re-run the install to check all is still good,,,
[root@716881 d10314a]# /opt/plesk/php/8.4/bin/php /usr/lib64/plesk-9.0/composer.phar require drush/dru
sh
Do not run Composer as root/super user! See How do I install untrusted packages safely? Is it safe...