Maui is not following the Neon LTS repos.
You could however use Maui 2.1 and add the neon lts repo and upgrade from there.
That should work. However we do not officially support that and you are then basically running KDE Neon LTS
You could however use Maui 2.1 and add the neon lts repo and upgrade from there.
That should work. However we do not officially support that and you are then basically running KDE Neon LTS