Debian is a large, complex operating system, and a huge open source project. It’s thirty years old now. To many people, some of its aspects are weird. Most such things have a good reason, but it can be hard to find out what it is. This is an attempt to answer some such questions, without being a detailed history of the project.
I still haven't tried Proxmox. I need to look into it
I work with 2 guys (electrician and mechanic) who both swear by it. I'm still on plane Jane Deb + LXC but I am very tempted by Proxmox's ability to migrate containers/vms between machines. Makes it really easy to test services before deploying them.
Migrating between machines would be a very handy feature, as well as for backup.
Do it. Proxmox is fucking awesome