SUMMARY Using Yakuake 21.04.2 on Manjaro, Plasma 5.22.2 the "Keep window open when it loses focus" preference is ignored when deselected or the "pin" unstuck.
When losing focus the Yakuake window remains open...it worked perfectly until I switched to Wayland


STEPS TO REPRODUCE
1. Open Yakuake in a Wayland session
2. deselect the preference to "keep window open when it loses focus"
3. click on another app or background so Yakuake session loses focus (it does not close in my case)

OBSERVED RESULT
Yakuake session does not close when losing focus even if pref "keep window open when it loses focus" is deselected.

EXPECTED RESULT
Yakuake window to close when it loses focus


SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux/KDE Plasma: 5.13.0-1-MANJARO-ARM (64bit)
(available in About System)
KDE Plasma Version: 5.22.2
KDE Frameworks Version: 5.83.0
Qt Version: 5.15.2

ADDITIONAL INFORMATION
Using Wayland, worked properly in X
ARM Processor 64bit, PineBook Pro Laptop
Similar or same to bug 386358 ....but the opposite in my case, probably because I had this pref enabled when I switched to wayland...and now cannot change the behavior with prefs deselection.