How to Properly Switch Distros?

I've been using PopOS! using KDE for a while now, and although I like it, I want to use the kubuntu backports, because there are a number of truly great features that I can't access, including features as simple as multicursor in Kate.

As such, I want to switch to kubuntu. My first step will be moving /home to a different partition from /. This won't be that bad, and I should have done it this way in the first place. Once I have this done though, what is the right process to change distros? I understand that I will need to reinstall most programs and drivers, but can this be done simply? Is apt clone the right thing for this? How can I carry over all my settings from Pop to kubuntu? It wouldn't be a truly massive pain to move things over, but it would be time consuming.

Advice would be appreciated! Thanks much!