Comment # 2 on bug 1228876 from Alexander Sanderson

(In reply to Christophe Marin from comment #1)
> That's usually caused by the QML cache bug.
> 
> You can try: `QML_DISABLE_DISK_CACHE=1 systemsettings` to check

I installed kf6-kirigami, uninstalled it, rebooted my computer, and now this
issue doesn't happen anymore. Super duper weird.

Wonder if there's a way to prevent this from happening in the first place on
new installs. It isn't a huge deal when it essentially fixes itself, but it
would still be a nice thing.