When I was trying to go upstream having used Pop!_OS for a while, I installed Kubuntu first and even though the install went through, the distro had problems getting to the desktop after post-install reboot. Even though my laptop is a Thinkpad which is supposed to be very well supported. I took this as a sign of things to come and shrugged off my hangover of rpm hell(!) and tried with Fedora+KDE instead. Best decision I made. I have been using it for a few months now and experience has been absolutely seamless and smooth sailing - highly recommended.