I intalled kwin 6.0.90.1 (from Arch KDE-Ustable repo). It works very well but It does not seem to honour the shortcut I had set up and which up to version 6.0.5 worked. This is what I have in kwinrc [ModifierOnlyShortcuts] Alt=org.kde.krunner,/App,,displaySingleRunner,krunner_appmenu Pressing Alt, krunner is not shown (alt+f2 works as supposed). I tried modifying it by putting org.kde.krunner1 but it still doesn't work.
ok I figerd out how new kglobalaccel works. Still, there is some problem with it but I open a specific bug.