Nice, good to know.
Now, I suppose that in a few years, We'll be moving forward to a newer version of our distro of choice. Then we'll (again) face a transitory situation in which users will be able to login to different systems with different versions of KDE installed, what could result in some trouble, due to different versions of the desktop environment and applications messing around with configuration files. In the past, we dealt with this by tweaking kde so that it would use "~/.kde.<distro_version> to store kde related data, instead of plainly "~/.kde". So, looking at https://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html
, from now on, I guess I could have the same result by tweaking the systems to replace "~/.config" wit "~/.config.<distro_version>".