Just a bit 
right now, for no reason my laptop now no longer wants to boot Ubuntu.
Time to try something different. Gonna dive into the world of #Manjaro 
and give it a go.
@matt That's a fine reason to do some distrohopping. You could take a deep dive into the world of troubleshooting, but then you wouldn't find out what Manjaro has to offer. Eventually though, once you've been hopping around enough, it's about time to do some troubleshooting too and find out what it takes to stay with the distro you like the most.
@PunaisetPimpulat I spoke too soon. It was some random BIOS setting that I flipped that I forgot to unflip. Now it boots again.
/facepalm
But if Kubuntu keeps being problematic on this laptop, I will be trying others.
(My main tower will remain 
Debian Stable though 🏋️♂️ )
@PunaisetPimpulat I REALLY love Debian Stable on my desktop. Throw in backported kernel + drivers, flatpaks and snaps for your up-to-date applications, and XFCE (or i3 or similar) and you are set.