http://kfgw55ndxkdnxu42cntbm3fd7tthrxgruq4bewaxhc7iytysetmreuyd.onion/blogs/20241101_blog.html
Apparently Plasma will start up GNOME services if they’re available which includes the Seahorse keychain, and the Plasma network manager is able to integrate with that keychain. I guess this is a cross-compatibility feature of Plasma, but Trinity isn’t going to play those games and so fails to ever send a password to authenticate with the wireless network.