wg-quick creates a systemd service for each wireguard config you have. So if you set up a tunel called wg0, you should be able to run ‘sudo systemctl enable wg-quick@wg0’ This will make your tunnel connect on every boot. I have the same setup on my proxmox, so i can reach certain services of my homelab proxied through a root server (the other end of the wireguard tunnel)

Yeah with lossy compression the future is today!

Easy, just replace each byte of data with multiple bytes of metadata. I see no problem here