If I remember correctly, Proxmox recommends running Docker in virtual machines instead of LXC containers. I sort of gave up on LXC containers for what I do, which is run stuff in Docker and use my server as a NAS with ZFS storage.
LXC containers are unprivileged by default, so the user IDs don’t match the conventional pattern (1000 is the main user, etc.). For a file sharing system this was a pain in the butt, because every file ended up being owned by some crazy user ID. There are ways around it which I did for some time, but moving to virtual machines instead has been super smooth.
They also don’t recommend running Docker on bare metal (Proxmox is Debian, after all). I don’t know the reasons why, but I tend to agree simply for backups. My VMs get automatically backed up on a schedule, and those backups automatically get sent to Backblaze B2 on a schedule
I never understood the hate against Raygun. Are there set moves in breakdancing? It’s not like ballet where you have to do very specific things.