What is your base system in your home server?

I’ve been running a small home server for several years now, and I’ve started to wonder whether it’s time to admit that I’m not as knowledgeable in this area as I’d like to be and should seek some more experienced opinions.

I know every setup is different and depends heavily on the applications and services being run, but I’m looking for a general idea and some perspective. What does your base system look like?

For example, I’m using Proxmox as a hypervisor and running several Debian LXCs on top of it.

There is another post in the community but in my opinion it’s a bit too generic. While every setup is built around individual requirements, I’m curious whether most experienced privacy security conscious self-hosters eventually settle on a similar foundation. Not sure if the consensus nowadays is to run BSD instances for example.