How to set the download directory in docker selenium
You can add a volume to your selenium container that would be mapping your host to container folder so that your volumes would look like:
selenium: image: selenium/standalone-chrome ports: - 4444:4444 restart: always volumes: - /path/to/host/folder:/Downloads
So all files which your container process would put to /Downloads
would appear in /path/to/host/folder
of your host.