Use LXC unless that's for some reason not possible. It has less overhead than VMs. How many services you put into one container is for you to decide. I have one for jellyfin and one for the arrs and download client. Splitting everything into more containers might be beneficial, if something stops working. You can then fix or use a backup for the one thing without inhibiting the other services.

Unless you want to use docker. Then, as others have mentioned, make one VM and put all your dockers there.

I have arr in lxc also, I just map a folder from the host into the lxc containers. It's working flawless, plus it's quite flexible.

I also have a few things running in docker, but if I can get it in lxc I do that.

And it's so easy doing with the scripts from the page I linked to you:)

Another benefit to LXC is you can map devices, including GPU, to multiple LXC while keeping them accessible to the host. For my home setup I currently have 3 LXC with access to the iGPU, 1 for jellyfin+caddy via podman nested, 1 for moonfire-nvr via podman nested, and been trying to use 1 to figure out hardware transcoding with owncast through multiple install methods but no luck so far. I've also been playing with mapping rtl-sdr v3 devices, zigbee stick, zwave stick, and coral usb for a variety of projects lately.

edit: I forgot to answer the question and went straight to ranting, lol. LXC is like a bare-metal VM. You can install & run multiple things on them like a normal VM including podman or docker.