Updates
<i<Since Plasma 5.25 has already passed end of life, and Kubuntu "Kinetic" will be replaced in April and goes out of support in July, you may as well opt in and get the latest bling. It's already packaged and ready in the Kubuntu Backports PPA.</i>
Is this a Linux distro making life difficult again? Why on earth should you have to enable some kind of backports repository to keep applications up to date?