My network shared folders are on a windows 11 (yes, I know. It’s shit.) pc and my docker is running on Linux.

Here’s what my mounts look like -

volumes:
  plex:
    driver: local
    driver_opts:
      type: cifs
      o: username=pc_username,password=pc_password,vers=3.0,file_mode=0777,dir_mode=0777
      device: //10.0.0.3/Plex

Hope this helps.