Thank you for clarifying, with these instructions I can use the features. Indeed.
If the devs are reading this, I have to ask them:
would it not be much better for the ‘left’/‘right’ quick-tile system to be rigurous and predictable while the tiles-editor is the way for people to do more complex stuff.
I’m very much not happy that an accidental change in window size actually changes something other than the window.
I mean, I ended up opening up two konsole’s and showing the number of columns / rows, just to allow me to get back to the 50/50 setup and correct the accidental resize. (i.e. it’s an expensive thing to fix!)
If kwin must, let the resize of two windows ‘tiled’ end up resizing those windows with zero change of the quick-tiling data underneath. Which means that if I want to reset it, I just hit the shortcut again.
And let anything more complex be done with the tiling system which is opt-in.
edit: copied the above to the bug report.