Backup is key. Installed the updated mobile app from the Google Playstore, and then I took a backup and followed the steps to edit the docker-compose.yml file. I pulled in the new Docker version, and so far, so good. 👍
I had a couple of issues but that might be due to using Portainer. Currently using immich go to upload the pictures from the old immich install. As long as it pulls the albums over then all good as the pictures are all flowing in nicely.