Cockpit is great.
It’s pretty simplistic. It gives you an overview of your system ressources and handles libvirt VMs and Docker (i think. I used it with Podman, but in this context both should work).
My impression was that the container and VM interfaces were pretty simple, and I wouldn’t have liked it as my main interface for those services, but it would be perfect for getting an overview and restarting them!
Same for me. You can bypass it if you read in a “private browsing” window.