just a reminder, kubuntu uses a different installer than ubuntu--one that offers btrfs (timeshift compatible configuration) out-of-the-box, as well as a choice of install type. the 'minimal' option is not much more than the base kde environment. no snaps, no snapd installed. hell, it doesn't even have a web browser (instructions for mozilla's own repository is [here](https://support.mozilla.org/en-US/kb/install-firefox-linux)