Going from 12.2 to 13.2, I am no longer able to make the NetworkManager
application forget a WiFi network. (Under KDE.)

Here is my problem. At a conference, the venue has a flaky free wireless with
no password but a proxy server that forces you to view their web-page before
you can access anything else. It's terrible, I tried it once, never again.

I also have a phone with portable hot-spot. I want to connect to this every
time.

But the NetworkManager always connects to the free network. I can't make it
forget this network.

Maybe there is an option, but it's not obvious. I gave up. Either this is a
missing feature, or terrible UI design. Either way it's not up to standard;
please fix.