Wireguard is a VPN. With wireguard, and another server, you can give yourself a clearnet ip address, and / or access your node remotely and securely. Umbrel, as an example I don't use, does include Tailscale which is uses Wireguard.

It also is a lot faster than doing it with Tor.

I've also done things with it like setting up nip05 verification and lud16 addresses.

For example here's my node's info. It appears to be in Sweden, but is not.