For anyone interested in how to setup AirVPN in Linux with NetworkManager on the command line.
Create connection
Get WireGuard Config File from AirVPN website:
https://airvpn.org/generator
Name Config File to wg0.conf
Import Config File:
sudo nmcli connection import type wireguard file wg0.conf
View connections:
nmcli connection show
Rename connection:
nmcli connection modify wg0 connection.id "MyConnection"
Manage connection
Start