Steps

Working with awsvpnclient 3.14.0

Download & Install AwsVPNClient and LibSSL1.1

curl -O http://security.ubuntu.com/ubuntu/pool/main/o/openssl/libssl1.1_1.1.1f-1ubuntu2.22_amd64.deb

curl https://d20adtppz83p9s.cloudfront.net/GTK/latest/awsvpnclient_amd64.deb -o awsvpnclient_amd64.deb

sudo dpkg -i libssl1.1_1.1.1f-1ubuntu2.22_amd64.deb awsvpnclient_amd64.deb

Edit files and add Env vars

sudo vim /etc/systemd/system/awsvpnclient.service

Put the Enviroment line

Environment=DOTNET_SYSTEM_GLOBALIZATION_INVARIANT=1

sudo systemctl daemon-reload
sudo systemctl restart awsvpnclient
journalctl -u awsvpnclient -n 20

Create a simbolic link

➜ cd /opt/awsvpnclient 

/opt/awsvpnclient  …
➜ sudo ln -s AWS\ VPN\ Client awsvpnclient  

Edit the menu to modify Exec

sudo vim /usr/share/applications/awsvpnclient.desktop

Put this content here.

desktop-file-validate /usr/share/applications/awsvpnclient.desktop