Drush 11 and Multisite

[webmasterpf]

Hello,

I can't get work the Drush Launcher for a multisite install for D8 and D9.
Actually this is the folder structure for Drush Launcher:

ls -la ~/bin/
drwxrwxr-x  3 27 Oct 26 14:53 composer
-rwxrwxr-x  1 298469 Feb  9  2022 drush

in my bashrc I put:

export PATH="$PATH:$HOME/bin:$PATH"
export PATH="$PATH:$HOME/www/pfdev/multid8/vendor/bin"

My site alias file look like:

pfdevd8cg:
  #Si limitation des commande avec utilisateur SSH particulier,sinon pas besoin
  host: ssh-XXX.alwaysdata.net
  user: XXX
  root: /www/pfdev/multid8
  uri: 'https://d8cg-pfdev.XXX.fr/'
  ssh:
    options: '-o PasswordAuthentication=no -i $HOME/.ssh/id_drush9'

But when I do:

drush @multid8.pfdevd8cg pml --filter=goo -vv or drush @multid8.pfdevd8cg status

Box Requirements Checker
========================

> Using PHP 7.4.30
> PHP is using the following php.ini file:
  /home/XX/admin/config/php/php.ini
> Checking Box requirements:
  .......
 [OK] Your system is ready to run the application.
The Drush launcher could not find a Drupal site to operate on. Please do *one* of the following:
  - Navigate to any where within your Drupal project and try again.
  - Add --root=/path/to/drupal so Drush knows where your site is located.

So how can I fix this, because I tried many things in bashrc or alias file whithout good result.
Thanks for help