

That is likely due to the RX9000 lineup needing the newer kernel for driver support. Kubuntu maybe didnt ship that 6.14 kernel at the time. Cachy is the best for new hardware because they have great tools for switching kernels and patching everything up to the bleeding edge. They make it easy to grab the latest kernel, mesa, nvidia driver or whatever you need for new hardware.
Yeah but for a new user its nice to see how different groups configure linux out of the box. Once you know what you’re doing you can tweak the distro to your liking but new users seem to search for a default they like and stick with it until comfortable.