Hi there,
I have this same bug/problem here. It seems that the application x2goclient needs some sort of database entry in Macos, to be able to appear in the list of 'Lokales Netzwerk', where I could enable network access for x2goclient. But it does not appear in this list. Did anybody find a solution for this problem? As a workaround, I can open an ssh tunnel to the remote machine, and then connect to a port on localhost. But this is a bit complicated for everyday use.
Best, Thomas