[technion]

The term has become a bit generic these days and people will use it in place of a range of things. Citrix or vmware are often just called "terminal server" by aome people.

There is a huge difference between a port forward on port 3389, and publishing the gateway behind azure app proxy - the latter supporting mfa, account lockouts, and not actually requiring any open port to the internet. Much of the discussion online treats these as equal.