When I type
apt upgrade I get the following message from KDE:
On KDE neon you should use `pkcon update` to install updates. If you absolutely must use apt you do have to use dist-upgrade or full-upgrade in place of the upgrade command. [...] Abort.
So the point is the abort.
Whatever KDE likes, I'd still like to use apt. Is there any way to still use it without a full-upgrade?