I have been happily using KDE on Arch Linux for many years as well. Just two times I saw what seemed to be an xorg glitch which required powering off and on th

I have been happily using KDE on Arch Linux for many years as well. Just two times I saw what seemed to be an xorg glitch which required powering off and on the display output via xrandr over SSH. And MTP (android file transfer) implementation under KDE is not ideal, it sometimes freezes or behaves weirdly. ADB CLI helps in such cases, though. Other than that it's a pretty solid and usable system. If you decide to use Linux, make sure your HW is well supported. For example AMD seems to be better choice over nVidia or even Intel.