Install Openvpn3 in Ubuntu 20.04 (Focal)
Step 1.
Open terminal and type text bellow
sudo apt install apt-transport-https
Step 2.
sudo wget https://swupdate.openvpn.net/repos/openvpn-repo-pkg-key.pub
Step 3.
sudo apt-key add openvpn-repo-pkg-key.pub
Step 4.
sudo wget -O /etc/apt/sources.list.d/openvpn3.list https://swupdate.openvpn.net/
community/openvpn3/repos/
openvpn3-focal.list
Step 5.
Update repo list
sudo apt update
Step 6.
Install openvpn3 with apt
sudo apt install openvpn3