It may be an experimental feature, but it's worth checking out if you're a self-hosting enthusiast ...
Besides their utility in self-hosted projects, Proxmox LXCs are just as viable for general server experiments ...
I have a Proxmox host with an unprivileged container, running Frigate NVR in Docker, because Docker is the only supported way to run Frigate. I could use a VM but then I'd have to pass the whole iGPU ...
I recently started dipping my toes into homelab/self-hosted stuff and after encountering docker in my workplace travails I got kinda excited to start playing with it at home when it came into my life ...