неожиданно:

[ diablopc@Q739.DiabloCRP /]$ cat ~/.config/kwinrulesrc 
[$Version]
update_info=kwinrules.upd:replace-placement-string-to-enum,kwinrules.upd:use-virtual-desktop-ids
[1]
Description=kcalc
ignoregeometry=true
ignoregeometryrule=3
position=87,497
positionrule=3
size=483,540
sizerule=3
wmclass=kcalc
wmclassmatch=1
[2]
Description=smile
above=true
aboverule=3
position=1407,27
positionrule=3
size=513,1053
sizerule=3
type=256
typerule=2
wmclass=emote
wmclassmatch=1
[3]
Description=ksmserver-logout-greeter
above=true
aboverule=3
wmclass=ksmserver-logout-greeter
wmclassmatch=1
[517a2caf-cea2-4c89-8495-90931e9d058d]
Description=kcalc
ignoregeometry=true
ignoregeometryrule=3
position=87,497
positionrule=3
size=483,540
sizerule=3
wmclass=kcalc
wmclassmatch=1
[552918a8-56b6-47ad-b958-7714af0eb945]
Description=ksmserver-logout-greeter
above=true
aboverule=3
wmclass=ksmserver-logout-greeter
wmclassmatch=1
[General]
count=3
rules=1,2,3