My computers are behind firewalls and I need Tailscale to do the NAT punching. I don't see another tool that does the job as well as Tailscale.
Though doing this "well" is subjective, so I can understand someone preferring Tailscale because it's easier to use.
if your access concentrator (server) is behind a nat, you'll need a port-forwarding from the outside but that's rare.