My latest Arch installation with KDE has been going for a few years. I will check out .pacnew, though. Maybe it will help alleviate Arch update issues. Thanks for the heads up.
Linux does turn into a hobby. If you get into customizing it, which for me is one of the main benefits of Linux, it can be a time drain, especially on rolling release distributions. On my previous Arch install I had Gnome installed, with use of Gnome extensions (e.g., Dash to Panel, etc.). One day an update to Gnome came through and many of my extensions stopped working - I booted into a blank desktop. Rather than fussing with Gnome, which I wasn't too impressed with anyway, I installed KDE and SDDM. There were too many packages with both Gnome and KDE installed - my menu was cluttered and updates took forever. I then decided to uninstall Gnome. Uninstalling Gnome borked my whole system. I could not even chroot into Arch from a thumb drive to fix it. My experience with KDE on my latest Arch installation has been better, but not anywhere as smooth as Linux Mint Cinnamon.
I still keep Arch around on its own SSD, but I have far, far fewer issues with Linux Mint, which is on a fixed release cycle. Virtually everything I need is available from the software manager, which now also includes flatpaks by default. If there are any packages where I want the to keep up with recent releases, I just install the flatpak versions.
Pipewire and Wayland have made strides, but I don't think they are yet fully ready for everyone. Fedora and other distros switching to them as default will help speed up their development, though. Eventually they will become the ubiquitous, kind of like systemd, and most of the bugs will be worked out. That is when I will make the jump.