Can't add WireGuard VPN connection to Ubuntu Network Manager

I'm having trouble adding a WireGuard VPN connection to the Network Manager on Ubuntu. I've followed several online tutorials and tried different methods, but nothing seems to work.

I've installed WireGuard using the sudo apt install wireguard command and created the configuration file /etc/wireguard/wg0.conf . The VPN connection works fine when I start it using the sudo wg-quick up wg0 command, but I can't seem to add it to the Network Manager.

When I go to "Add VPN Connection" in the Network Manager, I only see options for OpenVPN and PPTP. There's also an option to "Import from file", but when I select my wg0.conf file, it says that the file format is not supported.

I've tried restarting the Network Manager with sudo service network-manager restart , but that doesn't seem to help. I'm running Ubuntu 22.04.1 LTS.

Any help or suggestions would be greatly appreciated. Thanks in advance!

Install wireguard

$ sudo apt install wireguard

Create a Cryptographic Key Pair

$ sudo -i
# cd /etc/wireguard
# umask 077
# wg genkey | tee /etc/wireguard/privatekey | wg pubkey | tee /etc/wireguard/publickey

Add Client Public Key to WireGuard VPN Server

# wg set wg0 peer <client-public-key> allowed-ips <client-VPN-address>

Create a Network Connection with NetworkManager's Connection Editor GUI Heading

Using nm-connection-editor's GUI as described here.