Connect your device to external wifi over temp wifi AP
A solution to enable your device to connect to an external
wifi AP using a temporary wifi AP the device puts up and then
opening its web portal. Note that wifi-connect daemon assumes
control of device network management and other management solutions
should not be simultaneously used.
Enable snaps on Kubuntu and install pi-wifi-connect
Snaps are applications packaged with all their dependencies to run on all popular Linux distributions from a single build. They update automatically and roll back gracefully.
Snaps are discoverable and installable from the Snap Store, an app store with an audience of millions.