This should help. https://github.com/QubesOS/qubes-issues/issues/2584
Essentially, make sure you have gnome-keyring and libnotify-daemon rpms installed in the template. The edit the template /etc/NetworkManager/NetworkManager.conf file and add 'keyfile' to the plugins list under [main].
Thank you, I see you mention the need for libnotify-daemon which does not look to exist as a package in dnf.
For the plugin's line I have
#plugins=ifcfg-rh,ibft
Does it make more sense to match it to that in github ("plugins=ifbt,keyfile) or just updated to add keyfile to existing one I have. to be
plugins=ifcfg-rh,ibft,keyfile