goto extensions and add / ensure "Remote Development" extension is loaded
goto bottom left and click on "Open a Remote Window"
click "Connect to Host ..."
click "Configure SSH Host..."
select "... user_id/.ssh/config"
add in:
Host some_name
HostName 172.22.52.80
User user_id
now connect!
if you have your SSH keys, like for AWS EC2 instances: