I use portainer (also docker container) to manage all containers, even tho sometimes I have to use terminal. Few portainer alternatives also exist, but forgot the name. You can also setup watchtower for automatic updates if thats something for you. Im running Debian 11 and never tried casaOS or simmilar, but I dont think it matters what OS you use if its working. I have installed OMV on the same machine for NAS features