Have them check with their University if they do any Linux support. If they do - use one of the distros they support so they might possibly have KB articles about accessing University recourses from Linux.
Source: am Linux admin at a University that writes such documentation. I have seen exactly the Eduroam issue you mention and came up with an Ubuntu workaround for example.
Fedora or Mint for noob?
A friend might let me install Linux on his secondary laptop he uses for university. He’s not a tinkerer and wants something that just works....