They use some of the same kernel functions but they are not the same. They are not comparable. LXCs are used to host a whole separate system that shares kernel with its host, docker is used to bundle external requirements and configs for a piece of software for ease of downstream setup. Docker is portable, LXCs much less so.
It is run by Luke Smith, but is he a white supremacist? I know 4chan likes him, but I watched him for a long time and I didn't catch any explicit vibes.
As you want to do multiple different things, I recommend you install a hypervisor on the laptop, such as Proxmox. It'll make it easier for you, as a non-programmer, to manage containers and virtual machines.
You will have to deal some high level networking concepts regardless of what level of self-hosting you do, so you should familarize yourself with it. IP addresses, ports, basic firewalling, etc.
I won't stop you, but I will strongly discourage you from trying to host your own Email. It is a complicated mess of new standards stacked on top of ancient standards and it's miserable to work with even when it works. If you misconfigure your email server, you'll get blocked by every major email provider and there's no way back from that except starting over with a whole new IP and domain.
Take a few steps back and ask yourself what needs you're trying to fill. I never heard of Yunohost before, but it sounds high-level and abstract. Are you a programmer? Are you familiar with Linux? Are you comfortable in a terminal? Are you familiar with networking?
Find out what you want to do before installing "everything and the kitchen sink" solutions.
Thank you.
It is strange to me that the developers themselves would tell me that this wouldn't work, and that folder browsing requires Navidrome to support it inherently for clients to be able to do it.
cars?